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Finding the Fourth Proportional to 247,325.75, 341,309.58 and 139,893.47

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Solution

The fourth proportional to 247,325.75, 341,309.58 and 139,893.47 is: 193,053.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,325.75 : 341,309.58 = 139,893.47 : x
  2. Step 2: Convert to fraction form
    247,325.75/341,309.58 = 139,893.47/x
  3. Step 3: Cross multiply
    247,325.75x = 341,309.58 × 139,893.47
  4. Step 4: Simplify right side
    247,325.75x = 47,746,981,490.44
  5. Step 5: Solve for x
    x = 47,746,981,490.44/247,325.75
  6. Step 6: Final answer
    x = 193,053.01

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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.