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Finding the Fourth Proportional to 92,052.80, 138,079.20 and 32,890.40

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Solution

The fourth proportional to 92,052.80, 138,079.20 and 32,890.40 is: 49,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,052.80 : 138,079.20 = 32,890.40 : x
  2. Step 2: Convert to fraction form
    92,052.80/138,079.20 = 32,890.40/x
  3. Step 3: Cross multiply
    92,052.80x = 138,079.20 × 32,890.40
  4. Step 4: Simplify right side
    92,052.80x = 4,541,480,119.68
  5. Step 5: Solve for x
    x = 4,541,480,119.68/92,052.80
  6. Step 6: Final answer
    x = 49,335.60

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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.