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Finding the Fourth Proportional to 125,483.60, 173,174.28 and 71,770.88

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Solution

The fourth proportional to 125,483.60, 173,174.28 and 71,770.88 is: 99,047.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,483.60 : 173,174.28 = 71,770.88 : x
  2. Step 2: Convert to fraction form
    125,483.60/173,174.28 = 71,770.88/x
  3. Step 3: Cross multiply
    125,483.60x = 173,174.28 × 71,770.88
  4. Step 4: Simplify right side
    125,483.60x = 12,428,870,468.97
  5. Step 5: Solve for x
    x = 12,428,870,468.97/125,483.60
  6. Step 6: Final answer
    x = 99,047.77

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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.