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Finding the Fourth Proportional to 117,462.29, 162,125.78 and 69,743.17

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Solution

The fourth proportional to 117,462.29, 162,125.78 and 69,743.17 is: 96,262.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,462.29 : 162,125.78 = 69,743.17 : x
  2. Step 2: Convert to fraction form
    117,462.29/162,125.78 = 69,743.17/x
  3. Step 3: Cross multiply
    117,462.29x = 162,125.78 × 69,743.17
  4. Step 4: Simplify right side
    117,462.29x = 11,307,165,081.89
  5. Step 5: Solve for x
    x = 11,307,165,081.89/117,462.29
  6. Step 6: Final answer
    x = 96,262.08

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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.