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Finding the Fourth Proportional to 162,990.80, 244,291.80 and 84,064.40

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Solution

The fourth proportional to 162,990.80, 244,291.80 and 84,064.40 is: 125,996.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,990.80 : 244,291.80 = 84,064.40 : x
  2. Step 2: Convert to fraction form
    162,990.80/244,291.80 = 84,064.40/x
  3. Step 3: Cross multiply
    162,990.80x = 244,291.80 × 84,064.40
  4. Step 4: Simplify right side
    162,990.80x = 20,536,243,591.92
  5. Step 5: Solve for x
    x = 20,536,243,591.92/162,990.80
  6. Step 6: Final answer
    x = 125,996.34

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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.