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Finding the Fourth Proportional to 159,762.66, 220,473.96 and 88,142.04

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Solution

The fourth proportional to 159,762.66, 220,473.96 and 88,142.04 is: 121,636.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,762.66 : 220,473.96 = 88,142.04 : x
  2. Step 2: Convert to fraction form
    159,762.66/220,473.96 = 88,142.04/x
  3. Step 3: Cross multiply
    159,762.66x = 220,473.96 × 88,142.04
  4. Step 4: Simplify right side
    159,762.66x = 19,433,024,601.28
  5. Step 5: Solve for x
    x = 19,433,024,601.28/159,762.66
  6. Step 6: Final answer
    x = 121,636.84

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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.