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Finding the Fourth Proportional to 86,282.98, 129,249.51 and 44,642.50

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Solution

The fourth proportional to 86,282.98, 129,249.51 and 44,642.50 is: 66,873.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,282.98 : 129,249.51 = 44,642.50 : x
  2. Step 2: Convert to fraction form
    86,282.98/129,249.51 = 44,642.50/x
  3. Step 3: Cross multiply
    86,282.98x = 129,249.51 × 44,642.50
  4. Step 4: Simplify right side
    86,282.98x = 5,770,021,250.18
  5. Step 5: Solve for x
    x = 5,770,021,250.18/86,282.98
  6. Step 6: Final answer
    x = 66,873.23

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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.