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Finding the Fourth Proportional to 60,206.60, 90,320.70 and 25,149.80

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Solution

The fourth proportional to 60,206.60, 90,320.70 and 25,149.80 is: 37,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,206.60 : 90,320.70 = 25,149.80 : x
  2. Step 2: Convert to fraction form
    60,206.60/90,320.70 = 25,149.80/x
  3. Step 3: Cross multiply
    60,206.60x = 90,320.70 × 25,149.80
  4. Step 4: Simplify right side
    60,206.60x = 2,271,547,540.86
  5. Step 5: Solve for x
    x = 2,271,547,540.86/60,206.60
  6. Step 6: Final answer
    x = 37,729.21

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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.