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Finding the Fourth Proportional to 125,710.40, 173,478.92 and 93,588.64

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Solution

The fourth proportional to 125,710.40, 173,478.92 and 93,588.64 is: 129,151.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,710.40 : 173,478.92 = 93,588.64 : x
  2. Step 2: Convert to fraction form
    125,710.40/173,478.92 = 93,588.64/x
  3. Step 3: Cross multiply
    125,710.40x = 173,478.92 × 93,588.64
  4. Step 4: Simplify right side
    125,710.40x = 16,235,656,191.47
  5. Step 5: Solve for x
    x = 16,235,656,191.47/125,710.40
  6. Step 6: Final answer
    x = 129,151.26

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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.