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Finding the Fourth Proportional to 119,990.52, 179,817.12 and 53,350.20

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Solution

The fourth proportional to 119,990.52, 179,817.12 and 53,350.20 is: 79,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,990.52 : 179,817.12 = 53,350.20 : x
  2. Step 2: Convert to fraction form
    119,990.52/179,817.12 = 53,350.20/x
  3. Step 3: Cross multiply
    119,990.52x = 179,817.12 × 53,350.20
  4. Step 4: Simplify right side
    119,990.52x = 9,593,279,315.42
  5. Step 5: Solve for x
    x = 9,593,279,315.42/119,990.52
  6. Step 6: Final answer
    x = 79,950.31

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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.