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Finding the Fourth Proportional to 262,220.80, 361,843.20 and 149,017.60

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Solution

The fourth proportional to 262,220.80, 361,843.20 and 149,017.60 is: 205,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,220.80 : 361,843.20 = 149,017.60 : x
  2. Step 2: Convert to fraction form
    262,220.80/361,843.20 = 149,017.60/x
  3. Step 3: Cross multiply
    262,220.80x = 361,843.20 × 149,017.60
  4. Step 4: Simplify right side
    262,220.80x = 53,921,005,240.32
  5. Step 5: Solve for x
    x = 53,921,005,240.32/262,220.80
  6. Step 6: Final answer
    x = 205,632.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.