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Finding the Fourth Proportional to 113,714.38, 156,926.46 and 62,728.90

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Solution

The fourth proportional to 113,714.38, 156,926.46 and 62,728.90 is: 86,566.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,714.38 : 156,926.46 = 62,728.90 : x
  2. Step 2: Convert to fraction form
    113,714.38/156,926.46 = 62,728.90/x
  3. Step 3: Cross multiply
    113,714.38x = 156,926.46 × 62,728.90
  4. Step 4: Simplify right side
    113,714.38x = 9,843,824,216.69
  5. Step 5: Solve for x
    x = 9,843,824,216.69/113,714.38
  6. Step 6: Final answer
    x = 86,566.22

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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.