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Finding the Fourth Proportional to 106,328.40, 146,735.04 and 58,581.40

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Solution

The fourth proportional to 106,328.40, 146,735.04 and 58,581.40 is: 80,843.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,328.40 : 146,735.04 = 58,581.40 : x
  2. Step 2: Convert to fraction form
    106,328.40/146,735.04 = 58,581.40/x
  3. Step 3: Cross multiply
    106,328.40x = 146,735.04 × 58,581.40
  4. Step 4: Simplify right side
    106,328.40x = 8,595,944,072.26
  5. Step 5: Solve for x
    x = 8,595,944,072.26/106,328.40
  6. Step 6: Final answer
    x = 80,843.35

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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.