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Finding the Fourth Proportional to 250,423.17, 375,468.64 and 81,884.44

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Solution

The fourth proportional to 250,423.17, 375,468.64 and 81,884.44 is: 122,772.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,423.17 : 375,468.64 = 81,884.44 : x
  2. Step 2: Convert to fraction form
    250,423.17/375,468.64 = 81,884.44/x
  3. Step 3: Cross multiply
    250,423.17x = 375,468.64 × 81,884.44
  4. Step 4: Simplify right side
    250,423.17x = 30,745,039,323.96
  5. Step 5: Solve for x
    x = 30,745,039,323.96/250,423.17
  6. Step 6: Final answer
    x = 122,772.34

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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.