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Finding the Fourth Proportional to 125,150.77, 187,750.65 and 55,029.88

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Solution

The fourth proportional to 125,150.77, 187,750.65 and 55,029.88 is: 82,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,150.77 : 187,750.65 = 55,029.88 : x
  2. Step 2: Convert to fraction form
    125,150.77/187,750.65 = 55,029.88/x
  3. Step 3: Cross multiply
    125,150.77x = 187,750.65 × 55,029.88
  4. Step 4: Simplify right side
    125,150.77x = 10,331,894,800.67
  5. Step 5: Solve for x
    x = 10,331,894,800.67/125,150.77
  6. Step 6: Final answer
    x = 82,555.59

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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.