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Finding the Fourth Proportional to 159,948.60, 220,728.06 and 88,328.04

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Solution

The fourth proportional to 159,948.60, 220,728.06 and 88,328.04 is: 121,892.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,948.60 : 220,728.06 = 88,328.04 : x
  2. Step 2: Convert to fraction form
    159,948.60/220,728.06 = 88,328.04/x
  3. Step 3: Cross multiply
    159,948.60x = 220,728.06 × 88,328.04
  4. Step 4: Simplify right side
    159,948.60x = 19,496,476,912.80
  5. Step 5: Solve for x
    x = 19,496,476,912.80/159,948.60
  6. Step 6: Final answer
    x = 121,892.14

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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.