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Finding the Fourth Proportional to 108,603.62, 149,877.05 and 60,855.20

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Solution

The fourth proportional to 108,603.62, 149,877.05 and 60,855.20 is: 83,982.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,603.62 : 149,877.05 = 60,855.20 : x
  2. Step 2: Convert to fraction form
    108,603.62/149,877.05 = 60,855.20/x
  3. Step 3: Cross multiply
    108,603.62x = 149,877.05 × 60,855.20
  4. Step 4: Simplify right side
    108,603.62x = 9,120,796,799.50
  5. Step 5: Solve for x
    x = 9,120,796,799.50/108,603.62
  6. Step 6: Final answer
    x = 83,982.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.