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Finding the Fourth Proportional to 64,152.30, 96,046.20 and 60,661.20

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Solution

The fourth proportional to 64,152.30, 96,046.20 and 60,661.20 is: 90,819.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,152.30 : 96,046.20 = 60,661.20 : x
  2. Step 2: Convert to fraction form
    64,152.30/96,046.20 = 60,661.20/x
  3. Step 3: Cross multiply
    64,152.30x = 96,046.20 × 60,661.20
  4. Step 4: Simplify right side
    64,152.30x = 5,826,277,747.44
  5. Step 5: Solve for x
    x = 5,826,277,747.44/64,152.30
  6. Step 6: Final answer
    x = 90,819.47

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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.