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Finding the Fourth Proportional to 181,902.20, 251,032.59 and 101,329.70

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Solution

The fourth proportional to 181,902.20, 251,032.59 and 101,329.70 is: 139,839.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,902.20 : 251,032.59 = 101,329.70 : x
  2. Step 2: Convert to fraction form
    181,902.20/251,032.59 = 101,329.70/x
  3. Step 3: Cross multiply
    181,902.20x = 251,032.59 × 101,329.70
  4. Step 4: Simplify right side
    181,902.20x = 25,437,055,779.76
  5. Step 5: Solve for x
    x = 25,437,055,779.76/181,902.20
  6. Step 6: Final answer
    x = 139,839.19

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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.