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Finding the Fourth Proportional to 99,709.52, 149,593.43 and 29,590.65

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Solution

The fourth proportional to 99,709.52, 149,593.43 and 29,590.65 is: 44,394.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,709.52 : 149,593.43 = 29,590.65 : x
  2. Step 2: Convert to fraction form
    99,709.52/149,593.43 = 29,590.65/x
  3. Step 3: Cross multiply
    99,709.52x = 149,593.43 × 29,590.65
  4. Step 4: Simplify right side
    99,709.52x = 4,426,566,903.41
  5. Step 5: Solve for x
    x = 4,426,566,903.41/99,709.52
  6. Step 6: Final answer
    x = 44,394.63

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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.