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Finding the Fourth Proportional to 108,905.60, 163,358.40 and 73,476.20

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Solution

The fourth proportional to 108,905.60, 163,358.40 and 73,476.20 is: 110,214.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,905.60 : 163,358.40 = 73,476.20 : x
  2. Step 2: Convert to fraction form
    108,905.60/163,358.40 = 73,476.20/x
  3. Step 3: Cross multiply
    108,905.60x = 163,358.40 × 73,476.20
  4. Step 4: Simplify right side
    108,905.60x = 12,002,954,470.08
  5. Step 5: Solve for x
    x = 12,002,954,470.08/108,905.60
  6. Step 6: Final answer
    x = 110,214.30

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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.