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Finding the Fourth Proportional to 158,516.72, 218,822.88 and 110,956.76

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Solution

The fourth proportional to 158,516.72, 218,822.88 and 110,956.76 is: 153,169.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,516.72 : 218,822.88 = 110,956.76 : x
  2. Step 2: Convert to fraction form
    158,516.72/218,822.88 = 110,956.76/x
  3. Step 3: Cross multiply
    158,516.72x = 218,822.88 × 110,956.76
  4. Step 4: Simplify right side
    158,516.72x = 24,279,876,684.55
  5. Step 5: Solve for x
    x = 24,279,876,684.55/158,516.72
  6. Step 6: Final answer
    x = 153,169.19

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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.