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Finding the Fourth Proportional to 75,776.54, 104,551.11 and 43,070.49

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Solution

The fourth proportional to 75,776.54, 104,551.11 and 43,070.49 is: 59,425.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,776.54 : 104,551.11 = 43,070.49 : x
  2. Step 2: Convert to fraction form
    75,776.54/104,551.11 = 43,070.49/x
  3. Step 3: Cross multiply
    75,776.54x = 104,551.11 × 43,070.49
  4. Step 4: Simplify right side
    75,776.54x = 4,503,067,537.74
  5. Step 5: Solve for x
    x = 4,503,067,537.74/75,776.54
  6. Step 6: Final answer
    x = 59,425.62

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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.