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Finding the Fourth Proportional to 355,120.80, 532,227.60 and 144,520.80

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Solution

The fourth proportional to 355,120.80, 532,227.60 and 144,520.80 is: 216,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,120.80 : 532,227.60 = 144,520.80 : x
  2. Step 2: Convert to fraction form
    355,120.80/532,227.60 = 144,520.80/x
  3. Step 3: Cross multiply
    355,120.80x = 532,227.60 × 144,520.80
  4. Step 4: Simplify right side
    355,120.80x = 76,917,958,534.08
  5. Step 5: Solve for x
    x = 76,917,958,534.08/355,120.80
  6. Step 6: Final answer
    x = 216,596.60

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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.