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Finding the Fourth Proportional to 251,002.38, 375,562.49 and 149,428.90

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Solution

The fourth proportional to 251,002.38, 375,562.49 and 149,428.90 is: 223,583.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,002.38 : 375,562.49 = 149,428.90 : x
  2. Step 2: Convert to fraction form
    251,002.38/375,562.49 = 149,428.90/x
  3. Step 3: Cross multiply
    251,002.38x = 375,562.49 × 149,428.90
  4. Step 4: Simplify right side
    251,002.38x = 56,119,888,075.91
  5. Step 5: Solve for x
    x = 56,119,888,075.91/251,002.38
  6. Step 6: Final answer
    x = 223,583.09

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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.