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Finding the Fourth Proportional to 99,753.10, 137,640.42 and 59,470.58

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Solution

The fourth proportional to 99,753.10, 137,640.42 and 59,470.58 is: 82,058.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,753.10 : 137,640.42 = 59,470.58 : x
  2. Step 2: Convert to fraction form
    99,753.10/137,640.42 = 59,470.58/x
  3. Step 3: Cross multiply
    99,753.10x = 137,640.42 × 59,470.58
  4. Step 4: Simplify right side
    99,753.10x = 8,185,555,608.84
  5. Step 5: Solve for x
    x = 8,185,555,608.84/99,753.10
  6. Step 6: Final answer
    x = 82,058.16

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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.