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Finding the Fourth Proportional to 123,753.60, 170,778.98 and 67,164.98

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Solution

The fourth proportional to 123,753.60, 170,778.98 and 67,164.98 is: 92,687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,753.60 : 170,778.98 = 67,164.98 : x
  2. Step 2: Convert to fraction form
    123,753.60/170,778.98 = 67,164.98/x
  3. Step 3: Cross multiply
    123,753.60x = 170,778.98 × 67,164.98
  4. Step 4: Simplify right side
    123,753.60x = 11,470,365,586.40
  5. Step 5: Solve for x
    x = 11,470,365,586.40/123,753.60
  6. Step 6: Final answer
    x = 92,687.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.