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Finding the Fourth Proportional to 543,321.70, 814,982.55 and 144,024.10

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Solution

The fourth proportional to 543,321.70, 814,982.55 and 144,024.10 is: 216,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,321.70 : 814,982.55 = 144,024.10 : x
  2. Step 2: Convert to fraction form
    543,321.70/814,982.55 = 144,024.10/x
  3. Step 3: Cross multiply
    543,321.70x = 814,982.55 × 144,024.10
  4. Step 4: Simplify right side
    543,321.70x = 117,377,128,279.46
  5. Step 5: Solve for x
    x = 117,377,128,279.46/543,321.70
  6. Step 6: Final answer
    x = 216,036.15

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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.