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Finding the Fourth Proportional to 171,113.92, 256,618.56 and 60,280

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Solution

The fourth proportional to 171,113.92, 256,618.56 and 60,280 is: 90,401.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,113.92 : 256,618.56 = 60,280 : x
  2. Step 2: Convert to fraction form
    171,113.92/256,618.56 = 60,280/x
  3. Step 3: Cross multiply
    171,113.92x = 256,618.56 × 60,280
  4. Step 4: Simplify right side
    171,113.92x = 15,468,966,796.80
  5. Step 5: Solve for x
    x = 15,468,966,796.80/171,113.92
  6. Step 6: Final answer
    x = 90,401.57

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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.