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Finding the Fourth Proportional to 357,642.20, 536,463.30 and 224,615.90

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Solution

The fourth proportional to 357,642.20, 536,463.30 and 224,615.90 is: 336,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,642.20 : 536,463.30 = 224,615.90 : x
  2. Step 2: Convert to fraction form
    357,642.20/536,463.30 = 224,615.90/x
  3. Step 3: Cross multiply
    357,642.20x = 536,463.30 × 224,615.90
  4. Step 4: Simplify right side
    357,642.20x = 120,498,186,946.47
  5. Step 5: Solve for x
    x = 120,498,186,946.47/357,642.20
  6. Step 6: Final answer
    x = 336,923.85

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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.