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Finding the Fourth Proportional to 78,854.68, 108,818.50 and 44,863.08

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Solution

The fourth proportional to 78,854.68, 108,818.50 and 44,863.08 is: 61,910.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,854.68 : 108,818.50 = 44,863.08 : x
  2. Step 2: Convert to fraction form
    78,854.68/108,818.50 = 44,863.08/x
  3. Step 3: Cross multiply
    78,854.68x = 108,818.50 × 44,863.08
  4. Step 4: Simplify right side
    78,854.68x = 4,881,933,070.98
  5. Step 5: Solve for x
    x = 4,881,933,070.98/78,854.68
  6. Step 6: Final answer
    x = 61,910.51

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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.