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Finding the Fourth Proportional to 121,034.67, 181,104.13 and 73,031.10

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Solution

The fourth proportional to 121,034.67, 181,104.13 and 73,031.10 is: 109,276.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,034.67 : 181,104.13 = 73,031.10 : x
  2. Step 2: Convert to fraction form
    121,034.67/181,104.13 = 73,031.10/x
  3. Step 3: Cross multiply
    121,034.67x = 181,104.13 × 73,031.10
  4. Step 4: Simplify right side
    121,034.67x = 13,226,233,828.44
  5. Step 5: Solve for x
    x = 13,226,233,828.44/121,034.67
  6. Step 6: Final answer
    x = 109,276.41

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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.