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Finding the Fourth Proportional to 245,531.84, 368,353.17 and 74,768.83

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Solution

The fourth proportional to 245,531.84, 368,353.17 and 74,768.83 is: 112,170.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,531.84 : 368,353.17 = 74,768.83 : x
  2. Step 2: Convert to fraction form
    245,531.84/368,353.17 = 74,768.83/x
  3. Step 3: Cross multiply
    245,531.84x = 368,353.17 × 74,768.83
  4. Step 4: Simplify right side
    245,531.84x = 27,541,334,813.73
  5. Step 5: Solve for x
    x = 27,541,334,813.73/245,531.84
  6. Step 6: Final answer
    x = 112,170.12

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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.