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Finding the Fourth Proportional to 159,966.92, 220,744.02 and 88,342.68

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Solution

The fourth proportional to 159,966.92, 220,744.02 and 88,342.68 is: 121,907.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,966.92 : 220,744.02 = 88,342.68 : x
  2. Step 2: Convert to fraction form
    159,966.92/220,744.02 = 88,342.68/x
  3. Step 3: Cross multiply
    159,966.92x = 220,744.02 × 88,342.68
  4. Step 4: Simplify right side
    159,966.92x = 19,501,118,320.77
  5. Step 5: Solve for x
    x = 19,501,118,320.77/159,966.92
  6. Step 6: Final answer
    x = 121,907.19

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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.