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Finding the Fourth Proportional to 113,753.94, 156,980.16 and 62,767.08

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Solution

The fourth proportional to 113,753.94, 156,980.16 and 62,767.08 is: 86,618.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,753.94 : 156,980.16 = 62,767.08 : x
  2. Step 2: Convert to fraction form
    113,753.94/156,980.16 = 62,767.08/x
  3. Step 3: Cross multiply
    113,753.94x = 156,980.16 × 62,767.08
  4. Step 4: Simplify right side
    113,753.94x = 9,853,186,261.13
  5. Step 5: Solve for x
    x = 9,853,186,261.13/113,753.94
  6. Step 6: Final answer
    x = 86,618.42

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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.