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Finding the Fourth Proportional to 78,408.01, 108,195.23 and 44,409.71

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Solution

The fourth proportional to 78,408.01, 108,195.23 and 44,409.71 is: 61,280.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,408.01 : 108,195.23 = 44,409.71 : x
  2. Step 2: Convert to fraction form
    78,408.01/108,195.23 = 44,409.71/x
  3. Step 3: Cross multiply
    78,408.01x = 108,195.23 × 44,409.71
  4. Step 4: Simplify right side
    78,408.01x = 4,804,918,357.73
  5. Step 5: Solve for x
    x = 4,804,918,357.73/78,408.01
  6. Step 6: Final answer
    x = 61,280.96

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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.