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Finding the Fourth Proportional to 106,446.81, 146,889.90 and 61,092.87

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Solution

The fourth proportional to 106,446.81, 146,889.90 and 61,092.87 is: 84,304.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,446.81 : 146,889.90 = 61,092.87 : x
  2. Step 2: Convert to fraction form
    106,446.81/146,889.90 = 61,092.87/x
  3. Step 3: Cross multiply
    106,446.81x = 146,889.90 × 61,092.87
  4. Step 4: Simplify right side
    106,446.81x = 8,973,925,565.01
  5. Step 5: Solve for x
    x = 8,973,925,565.01/106,446.81
  6. Step 6: Final answer
    x = 84,304.32

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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.