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Finding the Fourth Proportional to 125,473.74, 173,167.53 and 71,763.78

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Solution

The fourth proportional to 125,473.74, 173,167.53 and 71,763.78 is: 99,041.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,473.74 : 173,167.53 = 71,763.78 : x
  2. Step 2: Convert to fraction form
    125,473.74/173,167.53 = 71,763.78/x
  3. Step 3: Cross multiply
    125,473.74x = 173,167.53 × 71,763.78
  4. Step 4: Simplify right side
    125,473.74x = 12,427,156,526.06
  5. Step 5: Solve for x
    x = 12,427,156,526.06/125,473.74
  6. Step 6: Final answer
    x = 99,041.89

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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.