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Finding the Fourth Proportional to 68,715.16, 94,824.94 and 40,041.16

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Solution

The fourth proportional to 68,715.16, 94,824.94 and 40,041.16 is: 55,255.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,715.16 : 94,824.94 = 40,041.16 : x
  2. Step 2: Convert to fraction form
    68,715.16/94,824.94 = 40,041.16/x
  3. Step 3: Cross multiply
    68,715.16x = 94,824.94 × 40,041.16
  4. Step 4: Simplify right side
    68,715.16x = 3,796,900,594.53
  5. Step 5: Solve for x
    x = 3,796,900,594.53/68,715.16
  6. Step 6: Final answer
    x = 55,255.65

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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.