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Finding the Fourth Proportional to 267,065.16, 400,587.12 and 67,382.88

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Solution

The fourth proportional to 267,065.16, 400,587.12 and 67,382.88 is: 101,071.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,065.16 : 400,587.12 = 67,382.88 : x
  2. Step 2: Convert to fraction form
    267,065.16/400,587.12 = 67,382.88/x
  3. Step 3: Cross multiply
    267,065.16x = 400,587.12 × 67,382.88
  4. Step 4: Simplify right side
    267,065.16x = 26,992,713,836.51
  5. Step 5: Solve for x
    x = 26,992,713,836.51/267,065.16
  6. Step 6: Final answer
    x = 101,071.64

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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.