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Finding the Fourth Proportional to 119,392.09, 164,773.13 and 68,411.55

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Solution

The fourth proportional to 119,392.09, 164,773.13 and 68,411.55 is: 94,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,392.09 : 164,773.13 = 68,411.55 : x
  2. Step 2: Convert to fraction form
    119,392.09/164,773.13 = 68,411.55/x
  3. Step 3: Cross multiply
    119,392.09x = 164,773.13 × 68,411.55
  4. Step 4: Simplify right side
    119,392.09x = 11,272,385,497.49
  5. Step 5: Solve for x
    x = 11,272,385,497.49/119,392.09
  6. Step 6: Final answer
    x = 94,414.85

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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.