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Finding the Fourth Proportional to 272,567.70, 408,851.55 and 122,976.90

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Solution

The fourth proportional to 272,567.70, 408,851.55 and 122,976.90 is: 184,465.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,567.70 : 408,851.55 = 122,976.90 : x
  2. Step 2: Convert to fraction form
    272,567.70/408,851.55 = 122,976.90/x
  3. Step 3: Cross multiply
    272,567.70x = 408,851.55 × 122,976.90
  4. Step 4: Simplify right side
    272,567.70x = 50,279,296,179.20
  5. Step 5: Solve for x
    x = 50,279,296,179.20/272,567.70
  6. Step 6: Final answer
    x = 184,465.35

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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.