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Finding the Fourth Proportional to 71,247.51, 106,954.09 and 41,686.56

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Solution

The fourth proportional to 71,247.51, 106,954.09 and 41,686.56 is: 62,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,247.51 : 106,954.09 = 41,686.56 : x
  2. Step 2: Convert to fraction form
    71,247.51/106,954.09 = 41,686.56/x
  3. Step 3: Cross multiply
    71,247.51x = 106,954.09 × 41,686.56
  4. Step 4: Simplify right side
    71,247.51x = 4,458,547,985.81
  5. Step 5: Solve for x
    x = 4,458,547,985.81/71,247.51
  6. Step 6: Final answer
    x = 62,578.30

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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.