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Finding the Fourth Proportional to 71,646.66, 107,476.74 and 27,261.36

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Solution

The fourth proportional to 71,646.66, 107,476.74 and 27,261.36 is: 40,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,646.66 : 107,476.74 = 27,261.36 : x
  2. Step 2: Convert to fraction form
    71,646.66/107,476.74 = 27,261.36/x
  3. Step 3: Cross multiply
    71,646.66x = 107,476.74 × 27,261.36
  4. Step 4: Simplify right side
    71,646.66x = 2,929,962,100.77
  5. Step 5: Solve for x
    x = 2,929,962,100.77/71,646.66
  6. Step 6: Final answer
    x = 40,894.61

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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.