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Finding the Fourth Proportional to 367,079.80, 550,619.70 and 130,446.40

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Solution

The fourth proportional to 367,079.80, 550,619.70 and 130,446.40 is: 195,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,079.80 : 550,619.70 = 130,446.40 : x
  2. Step 2: Convert to fraction form
    367,079.80/550,619.70 = 130,446.40/x
  3. Step 3: Cross multiply
    367,079.80x = 550,619.70 × 130,446.40
  4. Step 4: Simplify right side
    367,079.80x = 71,826,357,634.08
  5. Step 5: Solve for x
    x = 71,826,357,634.08/367,079.80
  6. Step 6: Final answer
    x = 195,669.60

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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.