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Finding the Fourth Proportional to 99,366.70, 149,050.05 and 43,233.70

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Solution

The fourth proportional to 99,366.70, 149,050.05 and 43,233.70 is: 64,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,366.70 : 149,050.05 = 43,233.70 : x
  2. Step 2: Convert to fraction form
    99,366.70/149,050.05 = 43,233.70/x
  3. Step 3: Cross multiply
    99,366.70x = 149,050.05 × 43,233.70
  4. Step 4: Simplify right side
    99,366.70x = 6,443,985,146.69
  5. Step 5: Solve for x
    x = 6,443,985,146.69/99,366.70
  6. Step 6: Final answer
    x = 64,850.55

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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.