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Finding the Fourth Proportional to 418,010.32, 627,004.52 and 148,134.52

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Solution

The fourth proportional to 418,010.32, 627,004.52 and 148,134.52 is: 222,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,010.32 : 627,004.52 = 148,134.52 : x
  2. Step 2: Convert to fraction form
    418,010.32/627,004.52 = 148,134.52/x
  3. Step 3: Cross multiply
    418,010.32x = 627,004.52 × 148,134.52
  4. Step 4: Simplify right side
    418,010.32x = 92,881,013,608.03
  5. Step 5: Solve for x
    x = 92,881,013,608.03/418,010.32
  6. Step 6: Final answer
    x = 222,197.90

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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.