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Finding the Fourth Proportional to 68,384.69, 94,386.62 and 40,099.49

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Solution

The fourth proportional to 68,384.69, 94,386.62 and 40,099.49 is: 55,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,384.69 : 94,386.62 = 40,099.49 : x
  2. Step 2: Convert to fraction form
    68,384.69/94,386.62 = 40,099.49/x
  3. Step 3: Cross multiply
    68,384.69x = 94,386.62 × 40,099.49
  4. Step 4: Simplify right side
    68,384.69x = 3,784,855,081.53
  5. Step 5: Solve for x
    x = 3,784,855,081.53/68,384.69
  6. Step 6: Final answer
    x = 55,346.53

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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.