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Finding the Fourth Proportional to 159,722.64, 220,429.62 and 88,108.92

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Solution

The fourth proportional to 159,722.64, 220,429.62 and 88,108.92 is: 121,597.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,722.64 : 220,429.62 = 88,108.92 : x
  2. Step 2: Convert to fraction form
    159,722.64/220,429.62 = 88,108.92/x
  3. Step 3: Cross multiply
    159,722.64x = 220,429.62 × 88,108.92
  4. Step 4: Simplify right side
    159,722.64x = 19,421,815,754.21
  5. Step 5: Solve for x
    x = 19,421,815,754.21/159,722.64
  6. Step 6: Final answer
    x = 121,597.14

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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.