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Finding the Fourth Proportional to 92,753.50, 127,903 and 55,020.46

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Solution

The fourth proportional to 92,753.50, 127,903 and 55,020.46 is: 75,870.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,753.50 : 127,903 = 55,020.46 : x
  2. Step 2: Convert to fraction form
    92,753.50/127,903 = 55,020.46/x
  3. Step 3: Cross multiply
    92,753.50x = 127,903 × 55,020.46
  4. Step 4: Simplify right side
    92,753.50x = 7,037,281,895.38
  5. Step 5: Solve for x
    x = 7,037,281,895.38/92,753.50
  6. Step 6: Final answer
    x = 75,870.80

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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.