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Finding the Fourth Proportional to 266,048.56, 367,143.87 and 145,191.90

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Solution

The fourth proportional to 266,048.56, 367,143.87 and 145,191.90 is: 200,363.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,048.56 : 367,143.87 = 145,191.90 : x
  2. Step 2: Convert to fraction form
    266,048.56/367,143.87 = 145,191.90/x
  3. Step 3: Cross multiply
    266,048.56x = 367,143.87 × 145,191.90
  4. Step 4: Simplify right side
    266,048.56x = 53,306,316,058.65
  5. Step 5: Solve for x
    x = 53,306,316,058.65/266,048.56
  6. Step 6: Final answer
    x = 200,363.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.