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Finding the Fourth Proportional to 397,250.20, 596,105.70 and 147,957.40

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Solution

The fourth proportional to 397,250.20, 596,105.70 and 147,957.40 is: 222,021.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,250.20 : 596,105.70 = 147,957.40 : x
  2. Step 2: Convert to fraction form
    397,250.20/596,105.70 = 147,957.40/x
  3. Step 3: Cross multiply
    397,250.20x = 596,105.70 × 147,957.40
  4. Step 4: Simplify right side
    397,250.20x = 88,198,249,497.18
  5. Step 5: Solve for x
    x = 88,198,249,497.18/397,250.20
  6. Step 6: Final answer
    x = 222,021.91

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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.