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Finding the Fourth Proportional to 99,323.66, 148,938.61 and 36,099.74

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Solution

The fourth proportional to 99,323.66, 148,938.61 and 36,099.74 is: 54,132.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,323.66 : 148,938.61 = 36,099.74 : x
  2. Step 2: Convert to fraction form
    99,323.66/148,938.61 = 36,099.74/x
  3. Step 3: Cross multiply
    99,323.66x = 148,938.61 × 36,099.74
  4. Step 4: Simplify right side
    99,323.66x = 5,376,645,096.96
  5. Step 5: Solve for x
    x = 5,376,645,096.96/99,323.66
  6. Step 6: Final answer
    x = 54,132.57

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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.