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Finding the Fourth Proportional to 269,149.61, 403,724.41 and 79,595.21

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Solution

The fourth proportional to 269,149.61, 403,724.41 and 79,595.21 is: 119,392.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,149.61 : 403,724.41 = 79,595.21 : x
  2. Step 2: Convert to fraction form
    269,149.61/403,724.41 = 79,595.21/x
  3. Step 3: Cross multiply
    269,149.61x = 403,724.41 × 79,595.21
  4. Step 4: Simplify right side
    269,149.61x = 32,134,528,295.10
  5. Step 5: Solve for x
    x = 32,134,528,295.10/269,149.61
  6. Step 6: Final answer
    x = 119,392.81

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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.