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Finding the Fourth Proportional to 60,199.80, 90,314.28 and 18,079.80

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Solution

The fourth proportional to 60,199.80, 90,314.28 and 18,079.80 is: 27,124.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,199.80 : 90,314.28 = 18,079.80 : x
  2. Step 2: Convert to fraction form
    60,199.80/90,314.28 = 18,079.80/x
  3. Step 3: Cross multiply
    60,199.80x = 90,314.28 × 18,079.80
  4. Step 4: Simplify right side
    60,199.80x = 1,632,864,119.54
  5. Step 5: Solve for x
    x = 1,632,864,119.54/60,199.80
  6. Step 6: Final answer
    x = 27,124.08

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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.