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Finding the Fourth Proportional to 106,791.72, 160,908.45 and 88,479.24

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Solution

The fourth proportional to 106,791.72, 160,908.45 and 88,479.24 is: 133,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,791.72 : 160,908.45 = 88,479.24 : x
  2. Step 2: Convert to fraction form
    106,791.72/160,908.45 = 88,479.24/x
  3. Step 3: Cross multiply
    106,791.72x = 160,908.45 × 88,479.24
  4. Step 4: Simplify right side
    106,791.72x = 14,237,057,365.58
  5. Step 5: Solve for x
    x = 14,237,057,365.58/106,791.72
  6. Step 6: Final answer
    x = 133,316.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.