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Finding the Fourth Proportional to 125,690.85, 188,597.70 and 59,137.56

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Solution

The fourth proportional to 125,690.85, 188,597.70 and 59,137.56 is: 88,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,690.85 : 188,597.70 = 59,137.56 : x
  2. Step 2: Convert to fraction form
    125,690.85/188,597.70 = 59,137.56/x
  3. Step 3: Cross multiply
    125,690.85x = 188,597.70 × 59,137.56
  4. Step 4: Simplify right side
    125,690.85x = 11,153,207,799.61
  5. Step 5: Solve for x
    x = 11,153,207,799.61/125,690.85
  6. Step 6: Final answer
    x = 88,735.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.