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Finding the Fourth Proportional to 106,617.48, 159,981.57 and 43,483.92

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Solution

The fourth proportional to 106,617.48, 159,981.57 and 43,483.92 is: 65,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,617.48 : 159,981.57 = 43,483.92 : x
  2. Step 2: Convert to fraction form
    106,617.48/159,981.57 = 43,483.92/x
  3. Step 3: Cross multiply
    106,617.48x = 159,981.57 × 43,483.92
  4. Step 4: Simplify right side
    106,617.48x = 6,956,625,791.35
  5. Step 5: Solve for x
    x = 6,956,625,791.35/106,617.48
  6. Step 6: Final answer
    x = 65,248.45

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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.