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Finding the Fourth Proportional to 173,686.69, 239,687.63 and 94,198.69

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Solution

The fourth proportional to 173,686.69, 239,687.63 and 94,198.69 is: 129,994.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,686.69 : 239,687.63 = 94,198.69 : x
  2. Step 2: Convert to fraction form
    173,686.69/239,687.63 = 94,198.69/x
  3. Step 3: Cross multiply
    173,686.69x = 239,687.63 × 94,198.69
  4. Step 4: Simplify right side
    173,686.69x = 22,578,260,391.48
  5. Step 5: Solve for x
    x = 22,578,260,391.48/173,686.69
  6. Step 6: Final answer
    x = 129,994.19

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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.