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Finding the Fourth Proportional to 123,854.36, 170,919.72 and 67,265.72

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Solution

The fourth proportional to 123,854.36, 170,919.72 and 67,265.72 is: 92,827.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,854.36 : 170,919.72 = 67,265.72 : x
  2. Step 2: Convert to fraction form
    123,854.36/170,919.72 = 67,265.72/x
  3. Step 3: Cross multiply
    123,854.36x = 170,919.72 × 67,265.72
  4. Step 4: Simplify right side
    123,854.36x = 11,497,038,028.00
  5. Step 5: Solve for x
    x = 11,497,038,028.00/123,854.36
  6. Step 6: Final answer
    x = 92,827.08

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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.