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Finding the Fourth Proportional to 123,812.96, 170,863.44 and 67,225.28

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Solution

The fourth proportional to 123,812.96, 170,863.44 and 67,225.28 is: 92,771.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,812.96 : 170,863.44 = 67,225.28 : x
  2. Step 2: Convert to fraction form
    123,812.96/170,863.44 = 67,225.28/x
  3. Step 3: Cross multiply
    123,812.96x = 170,863.44 × 67,225.28
  4. Step 4: Simplify right side
    123,812.96x = 11,486,342,595.76
  5. Step 5: Solve for x
    x = 11,486,342,595.76/123,812.96
  6. Step 6: Final answer
    x = 92,771.73

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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.