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Finding the Fourth Proportional to 245,476.79, 368,215.23 and 67,983.83

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Solution

The fourth proportional to 245,476.79, 368,215.23 and 67,983.83 is: 101,975.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,476.79 : 368,215.23 = 67,983.83 : x
  2. Step 2: Convert to fraction form
    245,476.79/368,215.23 = 67,983.83/x
  3. Step 3: Cross multiply
    245,476.79x = 368,215.23 × 67,983.83
  4. Step 4: Simplify right side
    245,476.79x = 25,032,681,599.73
  5. Step 5: Solve for x
    x = 25,032,681,599.73/245,476.79
  6. Step 6: Final answer
    x = 101,975.76

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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.