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Finding the Fourth Proportional to 68,097.20, 93,969.72 and 37,881.92

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Solution

The fourth proportional to 68,097.20, 93,969.72 and 37,881.92 is: 52,274.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,097.20 : 93,969.72 = 37,881.92 : x
  2. Step 2: Convert to fraction form
    68,097.20/93,969.72 = 37,881.92/x
  3. Step 3: Cross multiply
    68,097.20x = 93,969.72 × 37,881.92
  4. Step 4: Simplify right side
    68,097.20x = 3,559,753,415.46
  5. Step 5: Solve for x
    x = 3,559,753,415.46/68,097.20
  6. Step 6: Final answer
    x = 52,274.59

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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.