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Finding the Fourth Proportional to 106,616.73, 159,980.45 and 43,483.17

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Solution

The fourth proportional to 106,616.73, 159,980.45 and 43,483.17 is: 65,247.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,616.73 : 159,980.45 = 43,483.17 : x
  2. Step 2: Convert to fraction form
    106,616.73/159,980.45 = 43,483.17/x
  3. Step 3: Cross multiply
    106,616.73x = 159,980.45 × 43,483.17
  4. Step 4: Simplify right side
    106,616.73x = 6,956,456,886.61
  5. Step 5: Solve for x
    x = 6,956,456,886.61/106,616.73
  6. Step 6: Final answer
    x = 65,247.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.