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Finding the Fourth Proportional to 123,952, 171,504.12 and 108,069.52

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Solution

The fourth proportional to 123,952, 171,504.12 and 108,069.52 is: 149,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,952 : 171,504.12 = 108,069.52 : x
  2. Step 2: Convert to fraction form
    123,952/171,504.12 = 108,069.52/x
  3. Step 3: Cross multiply
    123,952x = 171,504.12 × 108,069.52
  4. Step 4: Simplify right side
    123,952x = 18,534,367,926.42
  5. Step 5: Solve for x
    x = 18,534,367,926.42/123,952
  6. Step 6: Final answer
    x = 149,528.59

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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.