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Finding the Fourth Proportional to 68,740.97, 94,863.66 and 38,533.01

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Solution

The fourth proportional to 68,740.97, 94,863.66 and 38,533.01 is: 53,176.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,740.97 : 94,863.66 = 38,533.01 : x
  2. Step 2: Convert to fraction form
    68,740.97/94,863.66 = 38,533.01/x
  3. Step 3: Cross multiply
    68,740.97x = 94,863.66 × 38,533.01
  4. Step 4: Simplify right side
    68,740.97x = 3,655,382,359.42
  5. Step 5: Solve for x
    x = 3,655,382,359.42/68,740.97
  6. Step 6: Final answer
    x = 53,176.18

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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.