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Finding the Fourth Proportional to 95,230.40, 131,412.90 and 54,941.78

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Solution

The fourth proportional to 95,230.40, 131,412.90 and 54,941.78 is: 75,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,230.40 : 131,412.90 = 54,941.78 : x
  2. Step 2: Convert to fraction form
    95,230.40/131,412.90 = 54,941.78/x
  3. Step 3: Cross multiply
    95,230.40x = 131,412.90 × 54,941.78
  4. Step 4: Simplify right side
    95,230.40x = 7,220,058,640.96
  5. Step 5: Solve for x
    x = 7,220,058,640.96/95,230.40
  6. Step 6: Final answer
    x = 75,816.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.