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Finding the Fourth Proportional to 125,650.80, 188,476.20 and 55,666.80

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Solution

The fourth proportional to 125,650.80, 188,476.20 and 55,666.80 is: 83,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,650.80 : 188,476.20 = 55,666.80 : x
  2. Step 2: Convert to fraction form
    125,650.80/188,476.20 = 55,666.80/x
  3. Step 3: Cross multiply
    125,650.80x = 188,476.20 × 55,666.80
  4. Step 4: Simplify right side
    125,650.80x = 10,491,866,930.16
  5. Step 5: Solve for x
    x = 10,491,866,930.16/125,650.80
  6. Step 6: Final answer
    x = 83,500.20

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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.