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Finding the Fourth Proportional to 72,410.20, 108,615.30 and 60,746.20

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Solution

The fourth proportional to 72,410.20, 108,615.30 and 60,746.20 is: 91,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,410.20 : 108,615.30 = 60,746.20 : x
  2. Step 2: Convert to fraction form
    72,410.20/108,615.30 = 60,746.20/x
  3. Step 3: Cross multiply
    72,410.20x = 108,615.30 × 60,746.20
  4. Step 4: Simplify right side
    72,410.20x = 6,597,966,736.86
  5. Step 5: Solve for x
    x = 6,597,966,736.86/72,410.20
  6. Step 6: Final answer
    x = 91,119.30

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Similar ratio
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1.5x scale

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.