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Finding the Fourth Proportional to 99,747.70, 149,621.55 and 36,567.70

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Solution

The fourth proportional to 99,747.70, 149,621.55 and 36,567.70 is: 54,851.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,747.70 : 149,621.55 = 36,567.70 : x
  2. Step 2: Convert to fraction form
    99,747.70/149,621.55 = 36,567.70/x
  3. Step 3: Cross multiply
    99,747.70x = 149,621.55 × 36,567.70
  4. Step 4: Simplify right side
    99,747.70x = 5,471,315,953.94
  5. Step 5: Solve for x
    x = 5,471,315,953.94/99,747.70
  6. Step 6: Final answer
    x = 54,851.55

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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.