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Finding the Fourth Proportional to 106,391.95, 146,821.59 and 58,645.35

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Solution

The fourth proportional to 106,391.95, 146,821.59 and 58,645.35 is: 80,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,391.95 : 146,821.59 = 58,645.35 : x
  2. Step 2: Convert to fraction form
    106,391.95/146,821.59 = 58,645.35/x
  3. Step 3: Cross multiply
    106,391.95x = 146,821.59 × 58,645.35
  4. Step 4: Simplify right side
    106,391.95x = 8,610,403,533.11
  5. Step 5: Solve for x
    x = 8,610,403,533.11/106,391.95
  6. Step 6: Final answer
    x = 80,930.97

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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.