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Finding the Fourth Proportional to 268,610.40, 402,332.40 and 163,634.40

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Solution

The fourth proportional to 268,610.40, 402,332.40 and 163,634.40 is: 245,096.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,610.40 : 402,332.40 = 163,634.40 : x
  2. Step 2: Convert to fraction form
    268,610.40/402,332.40 = 163,634.40/x
  3. Step 3: Cross multiply
    268,610.40x = 402,332.40 × 163,634.40
  4. Step 4: Simplify right side
    268,610.40x = 65,835,420,874.56
  5. Step 5: Solve for x
    x = 65,835,420,874.56/268,610.40
  6. Step 6: Final answer
    x = 245,096.32

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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.