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Finding the Fourth Proportional to 159,902.86, 220,666.28 and 88,283.02

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Solution

The fourth proportional to 159,902.86, 220,666.28 and 88,283.02 is: 121,830.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,902.86 : 220,666.28 = 88,283.02 : x
  2. Step 2: Convert to fraction form
    159,902.86/220,666.28 = 88,283.02/x
  3. Step 3: Cross multiply
    159,902.86x = 220,666.28 × 88,283.02
  4. Step 4: Simplify right side
    159,902.86x = 19,481,085,610.57
  5. Step 5: Solve for x
    x = 19,481,085,610.57/159,902.86
  6. Step 6: Final answer
    x = 121,830.75

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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.