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Finding the Fourth Proportional to 245,397.09, 368,103.82 and 67,889.24

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Solution

The fourth proportional to 245,397.09, 368,103.82 and 67,889.24 is: 101,836.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,397.09 : 368,103.82 = 67,889.24 : x
  2. Step 2: Convert to fraction form
    245,397.09/368,103.82 = 67,889.24/x
  3. Step 3: Cross multiply
    245,397.09x = 368,103.82 × 67,889.24
  4. Step 4: Simplify right side
    245,397.09x = 24,990,286,740.38
  5. Step 5: Solve for x
    x = 24,990,286,740.38/245,397.09
  6. Step 6: Final answer
    x = 101,836.12

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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.