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Finding the Fourth Proportional to 247,325.25, 341,308.86 and 139,892.97

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Solution

The fourth proportional to 247,325.25, 341,308.86 and 139,892.97 is: 193,052.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,325.25 : 341,308.86 = 139,892.97 : x
  2. Step 2: Convert to fraction form
    247,325.25/341,308.86 = 139,892.97/x
  3. Step 3: Cross multiply
    247,325.25x = 341,308.86 × 139,892.97
  4. Step 4: Simplify right side
    247,325.25x = 47,746,710,112.71
  5. Step 5: Solve for x
    x = 47,746,710,112.71/247,325.25
  6. Step 6: Final answer
    x = 193,052.31

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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.