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Finding the Fourth Proportional to 60,478.62, 90,750.74 and 29,313.88

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Solution

The fourth proportional to 60,478.62, 90,750.74 and 29,313.88 is: 43,986.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,478.62 : 90,750.74 = 29,313.88 : x
  2. Step 2: Convert to fraction form
    60,478.62/90,750.74 = 29,313.88/x
  3. Step 3: Cross multiply
    60,478.62x = 90,750.74 × 29,313.88
  4. Step 4: Simplify right side
    60,478.62x = 2,660,256,302.27
  5. Step 5: Solve for x
    x = 2,660,256,302.27/60,478.62
  6. Step 6: Final answer
    x = 43,986.72

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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.