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Finding the Fourth Proportional to 72,625.40, 108,938.10 and 41,463.80

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Solution

The fourth proportional to 72,625.40, 108,938.10 and 41,463.80 is: 62,195.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,625.40 : 108,938.10 = 41,463.80 : x
  2. Step 2: Convert to fraction form
    72,625.40/108,938.10 = 41,463.80/x
  3. Step 3: Cross multiply
    72,625.40x = 108,938.10 × 41,463.80
  4. Step 4: Simplify right side
    72,625.40x = 4,516,987,590.78
  5. Step 5: Solve for x
    x = 4,516,987,590.78/72,625.40
  6. Step 6: Final answer
    x = 62,195.70

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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.