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Finding the Fourth Proportional to 247,215.66, 341,164.80 and 139,783.41

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Solution

The fourth proportional to 247,215.66, 341,164.80 and 139,783.41 is: 192,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,215.66 : 341,164.80 = 139,783.41 : x
  2. Step 2: Convert to fraction form
    247,215.66/341,164.80 = 139,783.41/x
  3. Step 3: Cross multiply
    247,215.66x = 341,164.80 × 139,783.41
  4. Step 4: Simplify right side
    247,215.66x = 47,689,179,115.97
  5. Step 5: Solve for x
    x = 47,689,179,115.97/247,215.66
  6. Step 6: Final answer
    x = 192,905.17

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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.