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Finding the Fourth Proportional to 131,407.60, 197,111.40 and 116,892.40

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Solution

The fourth proportional to 131,407.60, 197,111.40 and 116,892.40 is: 175,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,407.60 : 197,111.40 = 116,892.40 : x
  2. Step 2: Convert to fraction form
    131,407.60/197,111.40 = 116,892.40/x
  3. Step 3: Cross multiply
    131,407.60x = 197,111.40 × 116,892.40
  4. Step 4: Simplify right side
    131,407.60x = 23,040,824,613.36
  5. Step 5: Solve for x
    x = 23,040,824,613.36/131,407.60
  6. Step 6: Final answer
    x = 175,338.60

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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.