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Finding the Fourth Proportional to 162,903.20, 244,346.70 and 84,025.40

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Solution

The fourth proportional to 162,903.20, 244,346.70 and 84,025.40 is: 126,033.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,903.20 : 244,346.70 = 84,025.40 : x
  2. Step 2: Convert to fraction form
    162,903.20/244,346.70 = 84,025.40/x
  3. Step 3: Cross multiply
    162,903.20x = 244,346.70 × 84,025.40
  4. Step 4: Simplify right side
    162,903.20x = 20,531,329,206.18
  5. Step 5: Solve for x
    x = 20,531,329,206.18/162,903.20
  6. Step 6: Final answer
    x = 126,033.92

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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.