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Finding the Fourth Proportional to 123,847.84, 170,908.52 and 67,259.60

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Solution

The fourth proportional to 123,847.84, 170,908.52 and 67,259.60 is: 92,817.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,847.84 : 170,908.52 = 67,259.60 : x
  2. Step 2: Convert to fraction form
    123,847.84/170,908.52 = 67,259.60/x
  3. Step 3: Cross multiply
    123,847.84x = 170,908.52 × 67,259.60
  4. Step 4: Simplify right side
    123,847.84x = 11,495,238,691.79
  5. Step 5: Solve for x
    x = 11,495,238,691.79/123,847.84
  6. Step 6: Final answer
    x = 92,817.43

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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.