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Finding the Fourth Proportional to 119,087.66, 164,336.72 and 67,403.65

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Solution

The fourth proportional to 119,087.66, 164,336.72 and 67,403.65 is: 93,014.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,087.66 : 164,336.72 = 67,403.65 : x
  2. Step 2: Convert to fraction form
    119,087.66/164,336.72 = 67,403.65/x
  3. Step 3: Cross multiply
    119,087.66x = 164,336.72 × 67,403.65
  4. Step 4: Simplify right side
    119,087.66x = 11,076,895,520.03
  5. Step 5: Solve for x
    x = 11,076,895,520.03/119,087.66
  6. Step 6: Final answer
    x = 93,014.63

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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.