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Finding the Fourth Proportional to 163,044.60, 244,688.40 and 84,118.20

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Solution

The fourth proportional to 163,044.60, 244,688.40 and 84,118.20 is: 126,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,044.60 : 244,688.40 = 84,118.20 : x
  2. Step 2: Convert to fraction form
    163,044.60/244,688.40 = 84,118.20/x
  3. Step 3: Cross multiply
    163,044.60x = 244,688.40 × 84,118.20
  4. Step 4: Simplify right side
    163,044.60x = 20,582,747,768.88
  5. Step 5: Solve for x
    x = 20,582,747,768.88/163,044.60
  6. Step 6: Final answer
    x = 126,239.98

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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.