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Finding the Fourth Proportional to 348,683.32, 522,947.22 and 138,264.76

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Solution

The fourth proportional to 348,683.32, 522,947.22 and 138,264.76 is: 207,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,683.32 : 522,947.22 = 138,264.76 : x
  2. Step 2: Convert to fraction form
    348,683.32/522,947.22 = 138,264.76/x
  3. Step 3: Cross multiply
    348,683.32x = 522,947.22 × 138,264.76
  4. Step 4: Simplify right side
    348,683.32x = 72,305,171,865.97
  5. Step 5: Solve for x
    x = 72,305,171,865.97/348,683.32
  6. Step 6: Final answer
    x = 207,366.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.