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Finding the Fourth Proportional to 125,349.56, 188,024.98 and 42,244.28

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Solution

The fourth proportional to 125,349.56, 188,024.98 and 42,244.28 is: 63,366.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,349.56 : 188,024.98 = 42,244.28 : x
  2. Step 2: Convert to fraction form
    125,349.56/188,024.98 = 42,244.28/x
  3. Step 3: Cross multiply
    125,349.56x = 188,024.98 × 42,244.28
  4. Step 4: Simplify right side
    125,349.56x = 7,942,979,902.11
  5. Step 5: Solve for x
    x = 7,942,979,902.11/125,349.56
  6. Step 6: Final answer
    x = 63,366.64

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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.