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Finding the Fourth Proportional to 247,248.21, 341,200.44 and 139,817.91

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Solution

The fourth proportional to 247,248.21, 341,200.44 and 139,817.91 is: 192,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,248.21 : 341,200.44 = 139,817.91 : x
  2. Step 2: Convert to fraction form
    247,248.21/341,200.44 = 139,817.91/x
  3. Step 3: Cross multiply
    247,248.21x = 341,200.44 × 139,817.91
  4. Step 4: Simplify right side
    247,248.21x = 47,705,932,411.88
  5. Step 5: Solve for x
    x = 47,705,932,411.88/247,248.21
  6. Step 6: Final answer
    x = 192,947.53

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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.