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Finding the Fourth Proportional to 60,333.60, 90,586.80 and 47,200.80

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Solution

The fourth proportional to 60,333.60, 90,586.80 and 47,200.80 is: 70,868.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,333.60 : 90,586.80 = 47,200.80 : x
  2. Step 2: Convert to fraction form
    60,333.60/90,586.80 = 47,200.80/x
  3. Step 3: Cross multiply
    60,333.60x = 90,586.80 × 47,200.80
  4. Step 4: Simplify right side
    60,333.60x = 4,275,769,429.44
  5. Step 5: Solve for x
    x = 4,275,769,429.44/60,333.60
  6. Step 6: Final answer
    x = 70,868.79

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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.