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Finding the Fourth Proportional to 123,194, 170,006.88 and 69,479.48

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Solution

The fourth proportional to 123,194, 170,006.88 and 69,479.48 is: 95,881.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,194 : 170,006.88 = 69,479.48 : x
  2. Step 2: Convert to fraction form
    123,194/170,006.88 = 69,479.48/x
  3. Step 3: Cross multiply
    123,194x = 170,006.88 × 69,479.48
  4. Step 4: Simplify right side
    123,194x = 11,811,989,618.82
  5. Step 5: Solve for x
    x = 11,811,989,618.82/123,194
  6. Step 6: Final answer
    x = 95,881.21

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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.