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Finding the Fourth Proportional to 123,635, 170,617.36 and 67,046.36

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Solution

The fourth proportional to 123,635, 170,617.36 and 67,046.36 is: 92,524.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,635 : 170,617.36 = 67,046.36 : x
  2. Step 2: Convert to fraction form
    123,635/170,617.36 = 67,046.36/x
  3. Step 3: Cross multiply
    123,635x = 170,617.36 × 67,046.36
  4. Step 4: Simplify right side
    123,635x = 11,439,272,940.81
  5. Step 5: Solve for x
    x = 11,439,272,940.81/123,635
  6. Step 6: Final answer
    x = 92,524.55

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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.