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Finding the Fourth Proportional to 378,051.90, 567,126.45 and 188,609.10

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Solution

The fourth proportional to 378,051.90, 567,126.45 and 188,609.10 is: 282,937.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,051.90 : 567,126.45 = 188,609.10 : x
  2. Step 2: Convert to fraction form
    378,051.90/567,126.45 = 188,609.10/x
  3. Step 3: Cross multiply
    378,051.90x = 567,126.45 × 188,609.10
  4. Step 4: Simplify right side
    378,051.90x = 106,965,209,320.70
  5. Step 5: Solve for x
    x = 106,965,209,320.70/378,051.90
  6. Step 6: Final answer
    x = 282,937.90

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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.