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Finding the Fourth Proportional to 242,564.10, 363,846.15 and 221,568.90

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Solution

The fourth proportional to 242,564.10, 363,846.15 and 221,568.90 is: 332,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,564.10 : 363,846.15 = 221,568.90 : x
  2. Step 2: Convert to fraction form
    242,564.10/363,846.15 = 221,568.90/x
  3. Step 3: Cross multiply
    242,564.10x = 363,846.15 × 221,568.90
  4. Step 4: Simplify right side
    242,564.10x = 80,616,991,224.74
  5. Step 5: Solve for x
    x = 80,616,991,224.74/242,564.10
  6. Step 6: Final answer
    x = 332,353.35

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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.