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Finding the Fourth Proportional to 60,704.30, 91,056.45 and 31,179.80

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Solution

The fourth proportional to 60,704.30, 91,056.45 and 31,179.80 is: 46,769.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,704.30 : 91,056.45 = 31,179.80 : x
  2. Step 2: Convert to fraction form
    60,704.30/91,056.45 = 31,179.80/x
  3. Step 3: Cross multiply
    60,704.30x = 91,056.45 × 31,179.80
  4. Step 4: Simplify right side
    60,704.30x = 2,839,121,899.71
  5. Step 5: Solve for x
    x = 2,839,121,899.71/60,704.30
  6. Step 6: Final answer
    x = 46,769.70

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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.