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Finding the Fourth Proportional to 366,472.20, 549,708.30 and 130,081.80

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Solution

The fourth proportional to 366,472.20, 549,708.30 and 130,081.80 is: 195,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,472.20 : 549,708.30 = 130,081.80 : x
  2. Step 2: Convert to fraction form
    366,472.20/549,708.30 = 130,081.80/x
  3. Step 3: Cross multiply
    366,472.20x = 549,708.30 × 130,081.80
  4. Step 4: Simplify right side
    366,472.20x = 71,507,045,138.94
  5. Step 5: Solve for x
    x = 71,507,045,138.94/366,472.20
  6. Step 6: Final answer
    x = 195,122.70

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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.