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Finding the Fourth Proportional to 73,712.50, 101,725.77 and 40,180.66

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Solution

The fourth proportional to 73,712.50, 101,725.77 and 40,180.66 is: 55,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,712.50 : 101,725.77 = 40,180.66 : x
  2. Step 2: Convert to fraction form
    73,712.50/101,725.77 = 40,180.66/x
  3. Step 3: Cross multiply
    73,712.50x = 101,725.77 × 40,180.66
  4. Step 4: Simplify right side
    73,712.50x = 4,087,408,577.61
  5. Step 5: Solve for x
    x = 4,087,408,577.61/73,712.50
  6. Step 6: Final answer
    x = 55,450.68

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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.