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Finding the Fourth Proportional to 123,502.58, 170,431.34 and 69,786.44

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Solution

The fourth proportional to 123,502.58, 170,431.34 and 69,786.44 is: 96,304.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,502.58 : 170,431.34 = 69,786.44 : x
  2. Step 2: Convert to fraction form
    123,502.58/170,431.34 = 69,786.44/x
  3. Step 3: Cross multiply
    123,502.58x = 170,431.34 × 69,786.44
  4. Step 4: Simplify right side
    123,502.58x = 11,893,795,543.64
  5. Step 5: Solve for x
    x = 11,893,795,543.64/123,502.58
  6. Step 6: Final answer
    x = 96,304.03

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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.