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Finding the Fourth Proportional to 181,717.50, 272,587.20 and 57,058.50

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Solution

The fourth proportional to 181,717.50, 272,587.20 and 57,058.50 is: 85,591.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,717.50 : 272,587.20 = 57,058.50 : x
  2. Step 2: Convert to fraction form
    181,717.50/272,587.20 = 57,058.50/x
  3. Step 3: Cross multiply
    181,717.50x = 272,587.20 × 57,058.50
  4. Step 4: Simplify right side
    181,717.50x = 15,553,416,751.20
  5. Step 5: Solve for x
    x = 15,553,416,751.20/181,717.50
  6. Step 6: Final answer
    x = 85,591.19

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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.