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Finding the Fourth Proportional to 120,700.40, 181,115.40 and 50,586.80

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Solution

The fourth proportional to 120,700.40, 181,115.40 and 50,586.80 is: 75,907.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,700.40 : 181,115.40 = 50,586.80 : x
  2. Step 2: Convert to fraction form
    120,700.40/181,115.40 = 50,586.80/x
  3. Step 3: Cross multiply
    120,700.40x = 181,115.40 × 50,586.80
  4. Step 4: Simplify right side
    120,700.40x = 9,162,048,516.72
  5. Step 5: Solve for x
    x = 9,162,048,516.72/120,700.40
  6. Step 6: Final answer
    x = 75,907.36

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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.