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Finding the Fourth Proportional to 162,886.20, 244,321.20 and 84,008.40

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Solution

The fourth proportional to 162,886.20, 244,321.20 and 84,008.40 is: 126,008.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,886.20 : 244,321.20 = 84,008.40 : x
  2. Step 2: Convert to fraction form
    162,886.20/244,321.20 = 84,008.40/x
  3. Step 3: Cross multiply
    162,886.20x = 244,321.20 × 84,008.40
  4. Step 4: Simplify right side
    162,886.20x = 20,525,033,098.08
  5. Step 5: Solve for x
    x = 20,525,033,098.08/162,886.20
  6. Step 6: Final answer
    x = 126,008.42

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1.5x scale

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.