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Finding the Fourth Proportional to 207,452.80, 311,179.20 and 57,692.80

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Solution

The fourth proportional to 207,452.80, 311,179.20 and 57,692.80 is: 86,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,452.80 : 311,179.20 = 57,692.80 : x
  2. Step 2: Convert to fraction form
    207,452.80/311,179.20 = 57,692.80/x
  3. Step 3: Cross multiply
    207,452.80x = 311,179.20 × 57,692.80
  4. Step 4: Simplify right side
    207,452.80x = 17,952,799,349.76
  5. Step 5: Solve for x
    x = 17,952,799,349.76/207,452.80
  6. Step 6: Final answer
    x = 86,539.20

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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.