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Finding the Fourth Proportional to 89,802.68, 123,922.08 and 49,516.88

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Solution

The fourth proportional to 89,802.68, 123,922.08 and 49,516.88 is: 68,330.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,802.68 : 123,922.08 = 49,516.88 : x
  2. Step 2: Convert to fraction form
    89,802.68/123,922.08 = 49,516.88/x
  3. Step 3: Cross multiply
    89,802.68x = 123,922.08 × 49,516.88
  4. Step 4: Simplify right side
    89,802.68x = 6,136,234,764.71
  5. Step 5: Solve for x
    x = 6,136,234,764.71/89,802.68
  6. Step 6: Final answer
    x = 68,330.20

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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.