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Finding the Fourth Proportional to 181,876.40, 272,863.20 and 162,290.60

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Solution

The fourth proportional to 181,876.40, 272,863.20 and 162,290.60 is: 243,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,876.40 : 272,863.20 = 162,290.60 : x
  2. Step 2: Convert to fraction form
    181,876.40/272,863.20 = 162,290.60/x
  3. Step 3: Cross multiply
    181,876.40x = 272,863.20 × 162,290.60
  4. Step 4: Simplify right side
    181,876.40x = 44,283,132,445.92
  5. Step 5: Solve for x
    x = 44,283,132,445.92/181,876.40
  6. Step 6: Final answer
    x = 243,479.27

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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.