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Finding the Fourth Proportional to 106,501.46, 146,979.15 and 61,194.11

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Solution

The fourth proportional to 106,501.46, 146,979.15 and 61,194.11 is: 84,451.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,501.46 : 146,979.15 = 61,194.11 : x
  2. Step 2: Convert to fraction form
    106,501.46/146,979.15 = 61,194.11/x
  3. Step 3: Cross multiply
    106,501.46x = 146,979.15 × 61,194.11
  4. Step 4: Simplify right side
    106,501.46x = 8,994,258,640.25
  5. Step 5: Solve for x
    x = 8,994,258,640.25/106,501.46
  6. Step 6: Final answer
    x = 84,451.97

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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.