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Finding the Fourth Proportional to 442,169.66, 610,020.90 and 272,108.54

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Solution

The fourth proportional to 442,169.66, 610,020.90 and 272,108.54 is: 375,403.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,169.66 : 610,020.90 = 272,108.54 : x
  2. Step 2: Convert to fraction form
    442,169.66/610,020.90 = 272,108.54/x
  3. Step 3: Cross multiply
    442,169.66x = 610,020.90 × 272,108.54
  4. Step 4: Simplify right side
    442,169.66x = 165,991,896,468.49
  5. Step 5: Solve for x
    x = 165,991,896,468.49/442,169.66
  6. Step 6: Final answer
    x = 375,403.18

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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.