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Finding the Fourth Proportional to 113,155.02, 156,158.88 and 62,854.02

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Solution

The fourth proportional to 113,155.02, 156,158.88 and 62,854.02 is: 86,741.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,155.02 : 156,158.88 = 62,854.02 : x
  2. Step 2: Convert to fraction form
    113,155.02/156,158.88 = 62,854.02/x
  3. Step 3: Cross multiply
    113,155.02x = 156,158.88 × 62,854.02
  4. Step 4: Simplify right side
    113,155.02x = 9,815,213,366.70
  5. Step 5: Solve for x
    x = 9,815,213,366.70/113,155.02
  6. Step 6: Final answer
    x = 86,741.30

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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.