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Finding the Fourth Proportional to 378,499.62, 567,751.55 and 112,262.13

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Solution

The fourth proportional to 378,499.62, 567,751.55 and 112,262.13 is: 168,393.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,499.62 : 567,751.55 = 112,262.13 : x
  2. Step 2: Convert to fraction form
    378,499.62/567,751.55 = 112,262.13/x
  3. Step 3: Cross multiply
    378,499.62x = 567,751.55 × 112,262.13
  4. Step 4: Simplify right side
    378,499.62x = 63,736,997,752.49
  5. Step 5: Solve for x
    x = 63,736,997,752.49/378,499.62
  6. Step 6: Final answer
    x = 168,393.82

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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.