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Finding the Fourth Proportional to 220,997.40, 331,496.10 and 73,253.40

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Solution

The fourth proportional to 220,997.40, 331,496.10 and 73,253.40 is: 109,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,997.40 : 331,496.10 = 73,253.40 : x
  2. Step 2: Convert to fraction form
    220,997.40/331,496.10 = 73,253.40/x
  3. Step 3: Cross multiply
    220,997.40x = 331,496.10 × 73,253.40
  4. Step 4: Simplify right side
    220,997.40x = 24,283,216,411.74
  5. Step 5: Solve for x
    x = 24,283,216,411.74/220,997.40
  6. Step 6: Final answer
    x = 109,880.10

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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.