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Finding the Fourth Proportional to 125,651.39, 173,424.13 and 74,654.30

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Solution

The fourth proportional to 125,651.39, 173,424.13 and 74,654.30 is: 103,037.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,651.39 : 173,424.13 = 74,654.30 : x
  2. Step 2: Convert to fraction form
    125,651.39/173,424.13 = 74,654.30/x
  3. Step 3: Cross multiply
    125,651.39x = 173,424.13 × 74,654.30
  4. Step 4: Simplify right side
    125,651.39x = 12,946,857,028.26
  5. Step 5: Solve for x
    x = 12,946,857,028.26/125,651.39
  6. Step 6: Final answer
    x = 103,037.92

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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.