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Finding the Fourth Proportional to 125,607.60, 188,414.52 and 36,851.76

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Solution

The fourth proportional to 125,607.60, 188,414.52 and 36,851.76 is: 55,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,607.60 : 188,414.52 = 36,851.76 : x
  2. Step 2: Convert to fraction form
    125,607.60/188,414.52 = 36,851.76/x
  3. Step 3: Cross multiply
    125,607.60x = 188,414.52 × 36,851.76
  4. Step 4: Simplify right side
    125,607.60x = 6,943,406,671.56
  5. Step 5: Solve for x
    x = 6,943,406,671.56/125,607.60
  6. Step 6: Final answer
    x = 55,278.56

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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.