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Finding the Fourth Proportional to 171,904.13, 257,959.87 and 73,408.13

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Solution

The fourth proportional to 171,904.13, 257,959.87 and 73,408.13 is: 110,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,904.13 : 257,959.87 = 73,408.13 : x
  2. Step 2: Convert to fraction form
    171,904.13/257,959.87 = 73,408.13/x
  3. Step 3: Cross multiply
    171,904.13x = 257,959.87 × 73,408.13
  4. Step 4: Simplify right side
    171,904.13x = 18,936,351,671.74
  5. Step 5: Solve for x
    x = 18,936,351,671.74/171,904.13
  6. Step 6: Final answer
    x = 110,156.47

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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.