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Finding the Fourth Proportional to 125,650.54, 188,205.16 and 58,990.78

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Solution

The fourth proportional to 125,650.54, 188,205.16 and 58,990.78 is: 88,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,650.54 : 188,205.16 = 58,990.78 : x
  2. Step 2: Convert to fraction form
    125,650.54/188,205.16 = 58,990.78/x
  3. Step 3: Cross multiply
    125,650.54x = 188,205.16 × 58,990.78
  4. Step 4: Simplify right side
    125,650.54x = 11,102,369,188.42
  5. Step 5: Solve for x
    x = 11,102,369,188.42/125,650.54
  6. Step 6: Final answer
    x = 88,359.10

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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.