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Finding the Fourth Proportional to 252,295.92, 348,160.92 and 139,118.64

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Solution

The fourth proportional to 252,295.92, 348,160.92 and 139,118.64 is: 191,979.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,295.92 : 348,160.92 = 139,118.64 : x
  2. Step 2: Convert to fraction form
    252,295.92/348,160.92 = 139,118.64/x
  3. Step 3: Cross multiply
    252,295.92x = 348,160.92 × 139,118.64
  4. Step 4: Simplify right side
    252,295.92x = 48,435,673,691.55
  5. Step 5: Solve for x
    x = 48,435,673,691.55/252,295.92
  6. Step 6: Final answer
    x = 191,979.62

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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.