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Finding the Fourth Proportional to 108,809.30, 163,213.95 and 73,558.10

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Solution

The fourth proportional to 108,809.30, 163,213.95 and 73,558.10 is: 110,337.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,809.30 : 163,213.95 = 73,558.10 : x
  2. Step 2: Convert to fraction form
    108,809.30/163,213.95 = 73,558.10/x
  3. Step 3: Cross multiply
    108,809.30x = 163,213.95 × 73,558.10
  4. Step 4: Simplify right side
    108,809.30x = 12,005,708,055.50
  5. Step 5: Solve for x
    x = 12,005,708,055.50/108,809.30
  6. Step 6: Final answer
    x = 110,337.15

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Similar ratio
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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.