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Finding the Fourth Proportional to 99,103.92, 136,718.80 and 58,819.44

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Solution

The fourth proportional to 99,103.92, 136,718.80 and 58,819.44 is: 81,144.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,103.92 : 136,718.80 = 58,819.44 : x
  2. Step 2: Convert to fraction form
    99,103.92/136,718.80 = 58,819.44/x
  3. Step 3: Cross multiply
    99,103.92x = 136,718.80 × 58,819.44
  4. Step 4: Simplify right side
    99,103.92x = 8,041,723,253.47
  5. Step 5: Solve for x
    x = 8,041,723,253.47/99,103.92
  6. Step 6: Final answer
    x = 81,144.35

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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.