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Finding the Fourth Proportional to 123,125.56, 169,913.26 and 69,410.58

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Solution

The fourth proportional to 123,125.56, 169,913.26 and 69,410.58 is: 95,786.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,125.56 : 169,913.26 = 69,410.58 : x
  2. Step 2: Convert to fraction form
    123,125.56/169,913.26 = 69,410.58/x
  3. Step 3: Cross multiply
    123,125.56x = 169,913.26 × 69,410.58
  4. Step 4: Simplify right side
    123,125.56x = 11,793,777,926.29
  5. Step 5: Solve for x
    x = 11,793,777,926.29/123,125.56
  6. Step 6: Final answer
    x = 95,786.59

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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.