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Finding the Fourth Proportional to 78,307.84, 108,046.08 and 44,765.44

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Solution

The fourth proportional to 78,307.84, 108,046.08 and 44,765.44 is: 61,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,307.84 : 108,046.08 = 44,765.44 : x
  2. Step 2: Convert to fraction form
    78,307.84/108,046.08 = 44,765.44/x
  3. Step 3: Cross multiply
    78,307.84x = 108,046.08 × 44,765.44
  4. Step 4: Simplify right side
    78,307.84x = 4,836,730,311.48
  5. Step 5: Solve for x
    x = 4,836,730,311.48/78,307.84
  6. Step 6: Final answer
    x = 61,765.59

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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.