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Finding the Fourth Proportional to 86,199.96, 129,299.72 and 27,040.08

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Solution

The fourth proportional to 86,199.96, 129,299.72 and 27,040.08 is: 40,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,199.96 : 129,299.72 = 27,040.08 : x
  2. Step 2: Convert to fraction form
    86,199.96/129,299.72 = 27,040.08/x
  3. Step 3: Cross multiply
    86,199.96x = 129,299.72 × 27,040.08
  4. Step 4: Simplify right side
    86,199.96x = 3,496,274,772.78
  5. Step 5: Solve for x
    x = 3,496,274,772.78/86,199.96
  6. Step 6: Final answer
    x = 40,560.05

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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.