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Finding the Fourth Proportional to 60,312.70, 90,469.05 and 54,772.30

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Solution

The fourth proportional to 60,312.70, 90,469.05 and 54,772.30 is: 82,158.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,312.70 : 90,469.05 = 54,772.30 : x
  2. Step 2: Convert to fraction form
    60,312.70/90,469.05 = 54,772.30/x
  3. Step 3: Cross multiply
    60,312.70x = 90,469.05 × 54,772.30
  4. Step 4: Simplify right side
    60,312.70x = 4,955,197,947.32
  5. Step 5: Solve for x
    x = 4,955,197,947.32/60,312.70
  6. Step 6: Final answer
    x = 82,158.45

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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.