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Finding the Fourth Proportional to 123,924, 171,016.64 and 67,336.32

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Solution

The fourth proportional to 123,924, 171,016.64 and 67,336.32 is: 92,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,924 : 171,016.64 = 67,336.32 : x
  2. Step 2: Convert to fraction form
    123,924/171,016.64 = 67,336.32/x
  3. Step 3: Cross multiply
    123,924x = 171,016.64 × 67,336.32
  4. Step 4: Simplify right side
    123,924x = 11,515,631,196.36
  5. Step 5: Solve for x
    x = 11,515,631,196.36/123,924
  6. Step 6: Final answer
    x = 92,924.95

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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.