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Finding the Fourth Proportional to 378,280.53, 567,503.82 and 112,061.88

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Solution

The fourth proportional to 378,280.53, 567,503.82 and 112,061.88 is: 168,117.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,280.53 : 567,503.82 = 112,061.88 : x
  2. Step 2: Convert to fraction form
    378,280.53/567,503.82 = 112,061.88/x
  3. Step 3: Cross multiply
    378,280.53x = 567,503.82 × 112,061.88
  4. Step 4: Simplify right side
    378,280.53x = 63,595,544,976.38
  5. Step 5: Solve for x
    x = 63,595,544,976.38/378,280.53
  6. Step 6: Final answer
    x = 168,117.42

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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.