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Finding the Fourth Proportional to 78,332.88, 108,092.70 and 44,339.61

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Solution

The fourth proportional to 78,332.88, 108,092.70 and 44,339.61 is: 61,184.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,332.88 : 108,092.70 = 44,339.61 : x
  2. Step 2: Convert to fraction form
    78,332.88/108,092.70 = 44,339.61/x
  3. Step 3: Cross multiply
    78,332.88x = 108,092.70 × 44,339.61
  4. Step 4: Simplify right side
    78,332.88x = 4,792,788,161.85
  5. Step 5: Solve for x
    x = 4,792,788,161.85/78,332.88
  6. Step 6: Final answer
    x = 61,184.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.