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Finding the Fourth Proportional to 148,937.70, 223,406.55 and 133,731.30

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Solution

The fourth proportional to 148,937.70, 223,406.55 and 133,731.30 is: 200,596.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,937.70 : 223,406.55 = 133,731.30 : x
  2. Step 2: Convert to fraction form
    148,937.70/223,406.55 = 133,731.30/x
  3. Step 3: Cross multiply
    148,937.70x = 223,406.55 × 133,731.30
  4. Step 4: Simplify right side
    148,937.70x = 29,876,448,360.02
  5. Step 5: Solve for x
    x = 29,876,448,360.02/148,937.70
  6. Step 6: Final answer
    x = 200,596.95

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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.