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Finding the Fourth Proportional to 78,454.92, 108,265.14 and 44,914.44

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Solution

The fourth proportional to 78,454.92, 108,265.14 and 44,914.44 is: 61,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,454.92 : 108,265.14 = 44,914.44 : x
  2. Step 2: Convert to fraction form
    78,454.92/108,265.14 = 44,914.44/x
  3. Step 3: Cross multiply
    78,454.92x = 108,265.14 × 44,914.44
  4. Step 4: Simplify right side
    78,454.92x = 4,862,668,134.62
  5. Step 5: Solve for x
    x = 4,862,668,134.62/78,454.92
  6. Step 6: Final answer
    x = 61,980.41

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1.5x scale

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.