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Finding the Fourth Proportional to 124,379.61, 186,608.85 and 44,415.82

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Solution

The fourth proportional to 124,379.61, 186,608.85 and 44,415.82 is: 66,637.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,379.61 : 186,608.85 = 44,415.82 : x
  2. Step 2: Convert to fraction form
    124,379.61/186,608.85 = 44,415.82/x
  3. Step 3: Cross multiply
    124,379.61x = 186,608.85 × 44,415.82
  4. Step 4: Simplify right side
    124,379.61x = 8,288,385,092.01
  5. Step 5: Solve for x
    x = 8,288,385,092.01/124,379.61
  6. Step 6: Final answer
    x = 66,637.81

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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.