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Finding the Fourth Proportional to 265,698.67, 398,634.07 and 159,065.95

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Solution

The fourth proportional to 265,698.67, 398,634.07 and 159,065.95 is: 238,650.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,698.67 : 398,634.07 = 159,065.95 : x
  2. Step 2: Convert to fraction form
    265,698.67/398,634.07 = 159,065.95/x
  3. Step 3: Cross multiply
    265,698.67x = 398,634.07 × 159,065.95
  4. Step 4: Simplify right side
    265,698.67x = 63,409,107,046.92
  5. Step 5: Solve for x
    x = 63,409,107,046.92/265,698.67
  6. Step 6: Final answer
    x = 238,650.45

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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.