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Finding the Fourth Proportional to 113,757.76, 156,984.66 and 62,770.96

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Solution

The fourth proportional to 113,757.76, 156,984.66 and 62,770.96 is: 86,623.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,757.76 : 156,984.66 = 62,770.96 : x
  2. Step 2: Convert to fraction form
    113,757.76/156,984.66 = 62,770.96/x
  3. Step 3: Cross multiply
    113,757.76x = 156,984.66 × 62,770.96
  4. Step 4: Simplify right side
    113,757.76x = 9,854,077,813.47
  5. Step 5: Solve for x
    x = 9,854,077,813.47/113,757.76
  6. Step 6: Final answer
    x = 86,623.35

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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.