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Finding the Fourth Proportional to 92,039.20, 138,058.80 and 32,903.20

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Solution

The fourth proportional to 92,039.20, 138,058.80 and 32,903.20 is: 49,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,039.20 : 138,058.80 = 32,903.20 : x
  2. Step 2: Convert to fraction form
    92,039.20/138,058.80 = 32,903.20/x
  3. Step 3: Cross multiply
    92,039.20x = 138,058.80 × 32,903.20
  4. Step 4: Simplify right side
    92,039.20x = 4,542,576,308.16
  5. Step 5: Solve for x
    x = 4,542,576,308.16/92,039.20
  6. Step 6: Final answer
    x = 49,354.80

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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.