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Finding the Fourth Proportional to 108,079.20, 162,214.80 and 63,650.40

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Solution

The fourth proportional to 108,079.20, 162,214.80 and 63,650.40 is: 95,532.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,079.20 : 162,214.80 = 63,650.40 : x
  2. Step 2: Convert to fraction form
    108,079.20/162,214.80 = 63,650.40/x
  3. Step 3: Cross multiply
    108,079.20x = 162,214.80 × 63,650.40
  4. Step 4: Simplify right side
    108,079.20x = 10,325,036,905.92
  5. Step 5: Solve for x
    x = 10,325,036,905.92/108,079.20
  6. Step 6: Final answer
    x = 95,532.14

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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.