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Finding the Fourth Proportional to 93,687.70, 140,531.55 and 83,846.20

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Solution

The fourth proportional to 93,687.70, 140,531.55 and 83,846.20 is: 125,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,687.70 : 140,531.55 = 83,846.20 : x
  2. Step 2: Convert to fraction form
    93,687.70/140,531.55 = 83,846.20/x
  3. Step 3: Cross multiply
    93,687.70x = 140,531.55 × 83,846.20
  4. Step 4: Simplify right side
    93,687.70x = 11,783,036,447.61
  5. Step 5: Solve for x
    x = 11,783,036,447.61/93,687.70
  6. Step 6: Final answer
    x = 125,769.30

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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.