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Finding the Fourth Proportional to 145,998.48, 218,863.80 and 95,998.80

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Solution

The fourth proportional to 145,998.48, 218,863.80 and 95,998.80 is: 143,910.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,998.48 : 218,863.80 = 95,998.80 : x
  2. Step 2: Convert to fraction form
    145,998.48/218,863.80 = 95,998.80/x
  3. Step 3: Cross multiply
    145,998.48x = 218,863.80 × 95,998.80
  4. Step 4: Simplify right side
    145,998.48x = 21,010,662,163.44
  5. Step 5: Solve for x
    x = 21,010,662,163.44/145,998.48
  6. Step 6: Final answer
    x = 143,910.14

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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.