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Finding the Fourth Proportional to 347,732.70, 521,793.45 and 148,019.10

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Solution

The fourth proportional to 347,732.70, 521,793.45 and 148,019.10 is: 222,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,732.70 : 521,793.45 = 148,019.10 : x
  2. Step 2: Convert to fraction form
    347,732.70/521,793.45 = 148,019.10/x
  3. Step 3: Cross multiply
    347,732.70x = 521,793.45 × 148,019.10
  4. Step 4: Simplify right side
    347,732.70x = 77,235,396,854.90
  5. Step 5: Solve for x
    x = 77,235,396,854.90/347,732.70
  6. Step 6: Final answer
    x = 222,111.40

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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.