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Finding the Fourth Proportional to 163,143.30, 244,520.55 and 68,373.30

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Solution

The fourth proportional to 163,143.30, 244,520.55 and 68,373.30 is: 102,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,143.30 : 244,520.55 = 68,373.30 : x
  2. Step 2: Convert to fraction form
    163,143.30/244,520.55 = 68,373.30/x
  3. Step 3: Cross multiply
    163,143.30x = 244,520.55 × 68,373.30
  4. Step 4: Simplify right side
    163,143.30x = 16,718,676,921.32
  5. Step 5: Solve for x
    x = 16,718,676,921.32/163,143.30
  6. Step 6: Final answer
    x = 102,478.48

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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.