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Finding the Fourth Proportional to 181,427.80, 250,369.02 and 100,862.68

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Solution

The fourth proportional to 181,427.80, 250,369.02 and 100,862.68 is: 139,189.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,427.80 : 250,369.02 = 100,862.68 : x
  2. Step 2: Convert to fraction form
    181,427.80/250,369.02 = 100,862.68/x
  3. Step 3: Cross multiply
    181,427.80x = 250,369.02 × 100,862.68
  4. Step 4: Simplify right side
    181,427.80x = 25,252,890,346.17
  5. Step 5: Solve for x
    x = 25,252,890,346.17/181,427.80
  6. Step 6: Final answer
    x = 139,189.75

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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.