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Finding the Fourth Proportional to 244,312.20, 366,468.30 and 86,556.60

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Solution

The fourth proportional to 244,312.20, 366,468.30 and 86,556.60 is: 129,834.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,312.20 : 366,468.30 = 86,556.60 : x
  2. Step 2: Convert to fraction form
    244,312.20/366,468.30 = 86,556.60/x
  3. Step 3: Cross multiply
    244,312.20x = 366,468.30 × 86,556.60
  4. Step 4: Simplify right side
    244,312.20x = 31,720,250,055.78
  5. Step 5: Solve for x
    x = 31,720,250,055.78/244,312.20
  6. Step 6: Final answer
    x = 129,834.90

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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.