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Finding the Fourth Proportional to 181,385.49, 272,034.48 and 56,726.49

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Solution

The fourth proportional to 181,385.49, 272,034.48 and 56,726.49 is: 85,076.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,385.49 : 272,034.48 = 56,726.49 : x
  2. Step 2: Convert to fraction form
    181,385.49/272,034.48 = 56,726.49/x
  3. Step 3: Cross multiply
    181,385.49x = 272,034.48 × 56,726.49
  4. Step 4: Simplify right side
    181,385.49x = 15,431,561,209.38
  5. Step 5: Solve for x
    x = 15,431,561,209.38/181,385.49
  6. Step 6: Final answer
    x = 85,076.05

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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.