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Finding the Fourth Proportional to 99,308.66, 148,916.07 and 36,084.71

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Solution

The fourth proportional to 99,308.66, 148,916.07 and 36,084.71 is: 54,110.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,308.66 : 148,916.07 = 36,084.71 : x
  2. Step 2: Convert to fraction form
    99,308.66/148,916.07 = 36,084.71/x
  3. Step 3: Cross multiply
    99,308.66x = 148,916.07 × 36,084.71
  4. Step 4: Simplify right side
    99,308.66x = 5,373,593,200.29
  5. Step 5: Solve for x
    x = 5,373,593,200.29/99,308.66
  6. Step 6: Final answer
    x = 54,110.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.