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Finding the Fourth Proportional to 83,108.70, 124,650.90 and 23,938.20

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Solution

The fourth proportional to 83,108.70, 124,650.90 and 23,938.20 is: 35,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,108.70 : 124,650.90 = 23,938.20 : x
  2. Step 2: Convert to fraction form
    83,108.70/124,650.90 = 23,938.20/x
  3. Step 3: Cross multiply
    83,108.70x = 124,650.90 × 23,938.20
  4. Step 4: Simplify right side
    83,108.70x = 2,983,918,174.38
  5. Step 5: Solve for x
    x = 2,983,918,174.38/83,108.70
  6. Step 6: Final answer
    x = 35,903.80

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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.