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Finding the Fourth Proportional to 263,358, 395,037 and 66,366

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Solution

The fourth proportional to 263,358, 395,037 and 66,366 is: 99,549

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,358 : 395,037 = 66,366 : x
  2. Step 2: Convert to fraction form
    263,358/395,037 = 66,366/x
  3. Step 3: Cross multiply
    263,358x = 395,037 × 66,366
  4. Step 4: Simplify right side
    263,358x = 26,217,025,542
  5. Step 5: Solve for x
    x = 26,217,025,542/263,358
  6. Step 6: Final answer
    x = 99,549

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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.