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Finding the Fourth Proportional to 60,231.60, 90,433.80 and 47,098.80

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Solution

The fourth proportional to 60,231.60, 90,433.80 and 47,098.80 is: 70,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,231.60 : 90,433.80 = 47,098.80 : x
  2. Step 2: Convert to fraction form
    60,231.60/90,433.80 = 47,098.80/x
  3. Step 3: Cross multiply
    60,231.60x = 90,433.80 × 47,098.80
  4. Step 4: Simplify right side
    60,231.60x = 4,259,323,459.44
  5. Step 5: Solve for x
    x = 4,259,323,459.44/60,231.60
  6. Step 6: Final answer
    x = 70,715.76

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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.