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Finding the Fourth Proportional to 286,344.66, 395,353.36 and 178,962.96

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Solution

The fourth proportional to 286,344.66, 395,353.36 and 178,962.96 is: 247,092.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,344.66 : 395,353.36 = 178,962.96 : x
  2. Step 2: Convert to fraction form
    286,344.66/395,353.36 = 178,962.96/x
  3. Step 3: Cross multiply
    286,344.66x = 395,353.36 × 178,962.96
  4. Step 4: Simplify right side
    286,344.66x = 70,753,607,551.55
  5. Step 5: Solve for x
    x = 70,753,607,551.55/286,344.66
  6. Step 6: Final answer
    x = 247,092.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.