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Finding the Fourth Proportional to 245,617.17, 368,425.72 and 68,124.21

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Solution

The fourth proportional to 245,617.17, 368,425.72 and 68,124.21 is: 102,186.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,617.17 : 368,425.72 = 68,124.21 : x
  2. Step 2: Convert to fraction form
    245,617.17/368,425.72 = 68,124.21/x
  3. Step 3: Cross multiply
    245,617.17x = 368,425.72 × 68,124.21
  4. Step 4: Simplify right side
    245,617.17x = 25,098,711,118.68
  5. Step 5: Solve for x
    x = 25,098,711,118.68/245,617.17
  6. Step 6: Final answer
    x = 102,186.31

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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.