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Finding the Fourth Proportional to 71,792.78, 107,425.83 and 59,917.22

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Solution

The fourth proportional to 71,792.78, 107,425.83 and 59,917.22 is: 89,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,792.78 : 107,425.83 = 59,917.22 : x
  2. Step 2: Convert to fraction form
    71,792.78/107,425.83 = 59,917.22/x
  3. Step 3: Cross multiply
    71,792.78x = 107,425.83 × 59,917.22
  4. Step 4: Simplify right side
    71,792.78x = 6,436,657,089.79
  5. Step 5: Solve for x
    x = 6,436,657,089.79/71,792.78
  6. Step 6: Final answer
    x = 89,656.05

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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.