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Finding the Fourth Proportional to 125,475.77, 173,150.51 and 71,766.69

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Solution

The fourth proportional to 125,475.77, 173,150.51 and 71,766.69 is: 99,034.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,475.77 : 173,150.51 = 71,766.69 : x
  2. Step 2: Convert to fraction form
    125,475.77/173,150.51 = 71,766.69/x
  3. Step 3: Cross multiply
    125,475.77x = 173,150.51 × 71,766.69
  4. Step 4: Simplify right side
    125,475.77x = 12,426,438,615.68
  5. Step 5: Solve for x
    x = 12,426,438,615.68/125,475.77
  6. Step 6: Final answer
    x = 99,034.57

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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.