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Finding the Fourth Proportional to 108,616.70, 162,925.05 and 73,187.30

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Solution

The fourth proportional to 108,616.70, 162,925.05 and 73,187.30 is: 109,780.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,616.70 : 162,925.05 = 73,187.30 : x
  2. Step 2: Convert to fraction form
    108,616.70/162,925.05 = 73,187.30/x
  3. Step 3: Cross multiply
    108,616.70x = 162,925.05 × 73,187.30
  4. Step 4: Simplify right side
    108,616.70x = 11,924,044,511.87
  5. Step 5: Solve for x
    x = 11,924,044,511.87/108,616.70
  6. Step 6: Final answer
    x = 109,780.95

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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.