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Finding the Fourth Proportional to 113,752.85, 156,987.74 and 62,775.71

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Solution

The fourth proportional to 113,752.85, 156,987.74 and 62,775.71 is: 86,635.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,752.85 : 156,987.74 = 62,775.71 : x
  2. Step 2: Convert to fraction form
    113,752.85/156,987.74 = 62,775.71/x
  3. Step 3: Cross multiply
    113,752.85x = 156,987.74 × 62,775.71
  4. Step 4: Simplify right side
    113,752.85x = 9,855,016,839.80
  5. Step 5: Solve for x
    x = 9,855,016,839.80/113,752.85
  6. Step 6: Final answer
    x = 86,635.34

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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.