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Finding the Fourth Proportional to 82,666.98, 123,912.68 and 52,586.60

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Solution

The fourth proportional to 82,666.98, 123,912.68 and 52,586.60 is: 78,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,666.98 : 123,912.68 = 52,586.60 : x
  2. Step 2: Convert to fraction form
    82,666.98/123,912.68 = 52,586.60/x
  3. Step 3: Cross multiply
    82,666.98x = 123,912.68 × 52,586.60
  4. Step 4: Simplify right side
    82,666.98x = 6,516,145,655.59
  5. Step 5: Solve for x
    x = 6,516,145,655.59/82,666.98
  6. Step 6: Final answer
    x = 78,824.04

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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.