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Finding the Fourth Proportional to 361,981,502.70, 542,972,254.05 and 89,352,269.70

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Solution

The fourth proportional to 361,981,502.70, 542,972,254.05 and 89,352,269.70 is: 134,028,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,981,502.70 : 542,972,254.05 = 89,352,269.70 : x
  2. Step 2: Convert to fraction form
    361,981,502.70/542,972,254.05 = 89,352,269.70/x
  3. Step 3: Cross multiply
    361,981,502.70x = 542,972,254.05 × 89,352,269.70
  4. Step 4: Simplify right side
    361,981,502.70x = 48,515,803,283,492,512
  5. Step 5: Solve for x
    x = 48,515,803,283,492,512/361,981,502.70
  6. Step 6: Final answer
    x = 134,028,404.55

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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.