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Finding the Fourth Proportional to 247,706.40, 341,976.69 and 163,069.50

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Solution

The fourth proportional to 247,706.40, 341,976.69 and 163,069.50 is: 225,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,706.40 : 341,976.69 = 163,069.50 : x
  2. Step 2: Convert to fraction form
    247,706.40/341,976.69 = 163,069.50/x
  3. Step 3: Cross multiply
    247,706.40x = 341,976.69 × 163,069.50
  4. Step 4: Simplify right side
    247,706.40x = 55,765,967,849.96
  5. Step 5: Solve for x
    x = 55,765,967,849.96/247,706.40
  6. Step 6: Final answer
    x = 225,129.30

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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.