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Finding the Fourth Proportional to 125,937.72, 188,950.32 and 55,866.24

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Solution

The fourth proportional to 125,937.72, 188,950.32 and 55,866.24 is: 83,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,937.72 : 188,950.32 = 55,866.24 : x
  2. Step 2: Convert to fraction form
    125,937.72/188,950.32 = 55,866.24/x
  3. Step 3: Cross multiply
    125,937.72x = 188,950.32 × 55,866.24
  4. Step 4: Simplify right side
    125,937.72x = 10,555,943,925.20
  5. Step 5: Solve for x
    x = 10,555,943,925.20/125,937.72
  6. Step 6: Final answer
    x = 83,818.76

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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.