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Finding the Fourth Proportional to 118,676.70, 163,769.77 and 67,705.93

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Solution

The fourth proportional to 118,676.70, 163,769.77 and 67,705.93 is: 93,431.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,676.70 : 163,769.77 = 67,705.93 : x
  2. Step 2: Convert to fraction form
    118,676.70/163,769.77 = 67,705.93/x
  3. Step 3: Cross multiply
    118,676.70x = 163,769.77 × 67,705.93
  4. Step 4: Simplify right side
    118,676.70x = 11,088,184,414.47
  5. Step 5: Solve for x
    x = 11,088,184,414.47/118,676.70
  6. Step 6: Final answer
    x = 93,431.86

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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.