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Finding the Fourth Proportional to 54,916.68, 82,761.88 and 49,657.68

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Solution

The fourth proportional to 54,916.68, 82,761.88 and 49,657.68 is: 74,836.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,916.68 : 82,761.88 = 49,657.68 : x
  2. Step 2: Convert to fraction form
    54,916.68/82,761.88 = 49,657.68/x
  3. Step 3: Cross multiply
    54,916.68x = 82,761.88 × 49,657.68
  4. Step 4: Simplify right side
    54,916.68x = 4,109,762,953.24
  5. Step 5: Solve for x
    x = 4,109,762,953.24/54,916.68
  6. Step 6: Final answer
    x = 74,836.33

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.