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Finding the Fourth Proportional to 93,489.97, 129,015.65 and 51,048.20

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Solution

The fourth proportional to 93,489.97, 129,015.65 and 51,048.20 is: 70,446.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,489.97 : 129,015.65 = 51,048.20 : x
  2. Step 2: Convert to fraction form
    93,489.97/129,015.65 = 51,048.20/x
  3. Step 3: Cross multiply
    93,489.97x = 129,015.65 × 51,048.20
  4. Step 4: Simplify right side
    93,489.97x = 6,586,016,449.09
  5. Step 5: Solve for x
    x = 6,586,016,449.09/93,489.97
  6. Step 6: Final answer
    x = 70,446.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.