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Finding the Fourth Proportional to 95,887.80, 143,831.70 and 72,559.80

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Solution

The fourth proportional to 95,887.80, 143,831.70 and 72,559.80 is: 108,839.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,887.80 : 143,831.70 = 72,559.80 : x
  2. Step 2: Convert to fraction form
    95,887.80/143,831.70 = 72,559.80/x
  3. Step 3: Cross multiply
    95,887.80x = 143,831.70 × 72,559.80
  4. Step 4: Simplify right side
    95,887.80x = 10,436,399,385.66
  5. Step 5: Solve for x
    x = 10,436,399,385.66/95,887.80
  6. Step 6: Final answer
    x = 108,839.70

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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.