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Finding the Fourth Proportional to 123,858.54, 170,924.64 and 67,269.51

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Solution

The fourth proportional to 123,858.54, 170,924.64 and 67,269.51 is: 92,831.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,858.54 : 170,924.64 = 67,269.51 : x
  2. Step 2: Convert to fraction form
    123,858.54/170,924.64 = 67,269.51/x
  3. Step 3: Cross multiply
    123,858.54x = 170,924.64 × 67,269.51
  4. Step 4: Simplify right side
    123,858.54x = 11,498,016,443.38
  5. Step 5: Solve for x
    x = 11,498,016,443.38/123,858.54
  6. Step 6: Final answer
    x = 92,831.84

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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.