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Finding the Fourth Proportional to 108,814.70, 163,003.35 and 73,385.30

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Solution

The fourth proportional to 108,814.70, 163,003.35 and 73,385.30 is: 109,930.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,814.70 : 163,003.35 = 73,385.30 : x
  2. Step 2: Convert to fraction form
    108,814.70/163,003.35 = 73,385.30/x
  3. Step 3: Cross multiply
    108,814.70x = 163,003.35 × 73,385.30
  4. Step 4: Simplify right side
    108,814.70x = 11,962,049,740.76
  5. Step 5: Solve for x
    x = 11,962,049,740.76/108,814.70
  6. Step 6: Final answer
    x = 109,930.46

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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.