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Finding the Fourth Proportional to 171,113.17, 256,713.50 and 71,240.17

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Solution

The fourth proportional to 171,113.17, 256,713.50 and 71,240.17 is: 106,878.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,113.17 : 256,713.50 = 71,240.17 : x
  2. Step 2: Convert to fraction form
    171,113.17/256,713.50 = 71,240.17/x
  3. Step 3: Cross multiply
    171,113.17x = 256,713.50 × 71,240.17
  4. Step 4: Simplify right side
    171,113.17x = 18,288,311,741.53
  5. Step 5: Solve for x
    x = 18,288,311,741.53/171,113.17
  6. Step 6: Final answer
    x = 106,878.46

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1.5x scale

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.