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Finding the Fourth Proportional to 92,281.60, 138,415.20 and 36,110.80

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Solution

The fourth proportional to 92,281.60, 138,415.20 and 36,110.80 is: 54,163.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,281.60 : 138,415.20 = 36,110.80 : x
  2. Step 2: Convert to fraction form
    92,281.60/138,415.20 = 36,110.80/x
  3. Step 3: Cross multiply
    92,281.60x = 138,415.20 × 36,110.80
  4. Step 4: Simplify right side
    92,281.60x = 4,998,283,604.16
  5. Step 5: Solve for x
    x = 4,998,283,604.16/92,281.60
  6. Step 6: Final answer
    x = 54,163.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.