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Finding the Fourth Proportional to 159,792.65, 220,513.60 and 88,172.62

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Solution

The fourth proportional to 159,792.65, 220,513.60 and 88,172.62 is: 121,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,792.65 : 220,513.60 = 88,172.62 : x
  2. Step 2: Convert to fraction form
    159,792.65/220,513.60 = 88,172.62/x
  3. Step 3: Cross multiply
    159,792.65x = 220,513.60 × 88,172.62
  4. Step 4: Simplify right side
    159,792.65x = 19,443,260,314.20
  5. Step 5: Solve for x
    x = 19,443,260,314.20/159,792.65
  6. Step 6: Final answer
    x = 121,678.06

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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.