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Finding the Fourth Proportional to 247,302.36, 341,328.36 and 139,876.92

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Solution

The fourth proportional to 247,302.36, 341,328.36 and 139,876.92 is: 193,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,302.36 : 341,328.36 = 139,876.92 : x
  2. Step 2: Convert to fraction form
    247,302.36/341,328.36 = 139,876.92/x
  3. Step 3: Cross multiply
    247,302.36x = 341,328.36 × 139,876.92
  4. Step 4: Simplify right side
    247,302.36x = 47,743,959,705.45
  5. Step 5: Solve for x
    x = 47,743,959,705.45/247,302.36
  6. Step 6: Final answer
    x = 193,059.05

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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.