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Finding the Fourth Proportional to 104,874.34, 157,250.76 and 71,634.57

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Solution

The fourth proportional to 104,874.34, 157,250.76 and 71,634.57 is: 107,410.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,874.34 : 157,250.76 = 71,634.57 : x
  2. Step 2: Convert to fraction form
    104,874.34/157,250.76 = 71,634.57/x
  3. Step 3: Cross multiply
    104,874.34x = 157,250.76 × 71,634.57
  4. Step 4: Simplify right side
    104,874.34x = 11,264,590,574.77
  5. Step 5: Solve for x
    x = 11,264,590,574.77/104,874.34
  6. Step 6: Final answer
    x = 107,410.36

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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.