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Finding the Fourth Proportional to 99,909.45, 149,923.28 and 36,773.91

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Solution

The fourth proportional to 99,909.45, 149,923.28 and 36,773.91 is: 55,182.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,909.45 : 149,923.28 = 36,773.91 : x
  2. Step 2: Convert to fraction form
    99,909.45/149,923.28 = 36,773.91/x
  3. Step 3: Cross multiply
    99,909.45x = 149,923.28 × 36,773.91
  4. Step 4: Simplify right side
    99,909.45x = 5,513,264,272.14
  5. Step 5: Solve for x
    x = 5,513,264,272.14/99,909.45
  6. Step 6: Final answer
    x = 55,182.61

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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.