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Finding the Fourth Proportional to 172,911, 259,366.50 and 41,583

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Solution

The fourth proportional to 172,911, 259,366.50 and 41,583 is: 62,374.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,911 : 259,366.50 = 41,583 : x
  2. Step 2: Convert to fraction form
    172,911/259,366.50 = 41,583/x
  3. Step 3: Cross multiply
    172,911x = 259,366.50 × 41,583
  4. Step 4: Simplify right side
    172,911x = 10,785,237,169.50
  5. Step 5: Solve for x
    x = 10,785,237,169.50/172,911
  6. Step 6: Final answer
    x = 62,374.50

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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.