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Finding the Fourth Proportional to 71,247.84, 106,837.25 and 29,111.19

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Solution

The fourth proportional to 71,247.84, 106,837.25 and 29,111.19 is: 43,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,247.84 : 106,837.25 = 29,111.19 : x
  2. Step 2: Convert to fraction form
    71,247.84/106,837.25 = 29,111.19/x
  3. Step 3: Cross multiply
    71,247.84x = 106,837.25 × 29,111.19
  4. Step 4: Simplify right side
    71,247.84x = 3,110,158,937.63
  5. Step 5: Solve for x
    x = 3,110,158,937.63/71,247.84
  6. Step 6: Final answer
    x = 43,652.68

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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.