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Finding the Fourth Proportional to 84,617.60, 116,734.70 and 54,397.31

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Solution

The fourth proportional to 84,617.60, 116,734.70 and 54,397.31 is: 75,044.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,617.60 : 116,734.70 = 54,397.31 : x
  2. Step 2: Convert to fraction form
    84,617.60/116,734.70 = 54,397.31/x
  3. Step 3: Cross multiply
    84,617.60x = 116,734.70 × 54,397.31
  4. Step 4: Simplify right side
    84,617.60x = 6,350,053,215.98
  5. Step 5: Solve for x
    x = 6,350,053,215.98/84,617.60
  6. Step 6: Final answer
    x = 75,044.12

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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.