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Finding the Fourth Proportional to 78,752.39, 108,675.90 and 44,764.58

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Solution

The fourth proportional to 78,752.39, 108,675.90 and 44,764.58 is: 61,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,752.39 : 108,675.90 = 44,764.58 : x
  2. Step 2: Convert to fraction form
    78,752.39/108,675.90 = 44,764.58/x
  3. Step 3: Cross multiply
    78,752.39x = 108,675.90 × 44,764.58
  4. Step 4: Simplify right side
    78,752.39x = 4,864,831,291.31
  5. Step 5: Solve for x
    x = 4,864,831,291.31/78,752.39
  6. Step 6: Final answer
    x = 61,773.76

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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.