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Finding the Fourth Proportional to 125,907.96, 173,777.96 and 72,229.26

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Solution

The fourth proportional to 125,907.96, 173,777.96 and 72,229.26 is: 99,690.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,907.96 : 173,777.96 = 72,229.26 : x
  2. Step 2: Convert to fraction form
    125,907.96/173,777.96 = 72,229.26/x
  3. Step 3: Cross multiply
    125,907.96x = 173,777.96 × 72,229.26
  4. Step 4: Simplify right side
    125,907.96x = 12,551,853,635.68
  5. Step 5: Solve for x
    x = 12,551,853,635.68/125,907.96
  6. Step 6: Final answer
    x = 99,690.71

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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.