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Finding the Fourth Proportional to 123,855.73, 170,921.79 and 67,267.10

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Solution

The fourth proportional to 123,855.73, 170,921.79 and 67,267.10 is: 92,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,855.73 : 170,921.79 = 67,267.10 : x
  2. Step 2: Convert to fraction form
    123,855.73/170,921.79 = 67,267.10/x
  3. Step 3: Cross multiply
    123,855.73x = 170,921.79 × 67,267.10
  4. Step 4: Simplify right side
    123,855.73x = 11,497,413,567.41
  5. Step 5: Solve for x
    x = 11,497,413,567.41/123,855.73
  6. Step 6: Final answer
    x = 92,829.08

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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.