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Finding the Fourth Proportional to 163,044.40, 244,445.10 and 84,215.20

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Solution

The fourth proportional to 163,044.40, 244,445.10 and 84,215.20 is: 126,260.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,044.40 : 244,445.10 = 84,215.20 : x
  2. Step 2: Convert to fraction form
    163,044.40/244,445.10 = 84,215.20/x
  3. Step 3: Cross multiply
    163,044.40x = 244,445.10 × 84,215.20
  4. Step 4: Simplify right side
    163,044.40x = 20,585,992,985.52
  5. Step 5: Solve for x
    x = 20,585,992,985.52/163,044.40
  6. Step 6: Final answer
    x = 126,260.04

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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.