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Finding the Fourth Proportional to 119,087.76, 164,336.85 and 67,403.75

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Solution

The fourth proportional to 119,087.76, 164,336.85 and 67,403.75 is: 93,014.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,087.76 : 164,336.85 = 67,403.75 : x
  2. Step 2: Convert to fraction form
    119,087.76/164,336.85 = 67,403.75/x
  3. Step 3: Cross multiply
    119,087.76x = 164,336.85 × 67,403.75
  4. Step 4: Simplify right side
    119,087.76x = 11,076,919,646.96
  5. Step 5: Solve for x
    x = 11,076,919,646.96/119,087.76
  6. Step 6: Final answer
    x = 93,014.76

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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.