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Finding the Fourth Proportional to 72,409,194,639.60, 108,613,791,959.40 and 72,409,194,639.60

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Solution

The fourth proportional to 72,409,194,639.60, 108,613,791,959.40 and 72,409,194,639.60 is: 108,613,791,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,409,194,639.60 : 108,613,791,959.40 = 72,409,194,639.60 : x
  2. Step 2: Convert to fraction form
    72,409,194,639.60/108,613,791,959.40 = 72,409,194,639.60/x
  3. Step 3: Cross multiply
    72,409,194,639.60x = 108,613,791,959.40 × 72,409,194,639.60
  4. Step 4: Simplify right side
    72,409,194,639.60x = 7,864,637,202,533,215,895,552
  5. Step 5: Solve for x
    x = 7,864,637,202,533,215,895,552/72,409,194,639.60
  6. Step 6: Final answer
    x = 108,613,791,959.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.