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Finding the Fourth Proportional to 117,368.11, 161,943.06 and 69,636.97

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Solution

The fourth proportional to 117,368.11, 161,943.06 and 69,636.97 is: 96,084.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,368.11 : 161,943.06 = 69,636.97 : x
  2. Step 2: Convert to fraction form
    117,368.11/161,943.06 = 69,636.97/x
  3. Step 3: Cross multiply
    117,368.11x = 161,943.06 × 69,636.97
  4. Step 4: Simplify right side
    117,368.11x = 11,277,224,010.93
  5. Step 5: Solve for x
    x = 11,277,224,010.93/117,368.11
  6. Step 6: Final answer
    x = 96,084.23

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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.