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Finding the Fourth Proportional to 268,572.80, 402,859.20 and 201,650.60

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Solution

The fourth proportional to 268,572.80, 402,859.20 and 201,650.60 is: 302,475.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,572.80 : 402,859.20 = 201,650.60 : x
  2. Step 2: Convert to fraction form
    268,572.80/402,859.20 = 201,650.60/x
  3. Step 3: Cross multiply
    268,572.80x = 402,859.20 × 201,650.60
  4. Step 4: Simplify right side
    268,572.80x = 81,236,799,395.52
  5. Step 5: Solve for x
    x = 81,236,799,395.52/268,572.80
  6. Step 6: Final answer
    x = 302,475.90

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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.