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Finding the Fourth Proportional to 201,755.88, 277,949.52 and 140,396.58

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Solution

The fourth proportional to 201,755.88, 277,949.52 and 140,396.58 is: 193,417.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,755.88 : 277,949.52 = 140,396.58 : x
  2. Step 2: Convert to fraction form
    201,755.88/277,949.52 = 140,396.58/x
  3. Step 3: Cross multiply
    201,755.88x = 277,949.52 × 140,396.58
  4. Step 4: Simplify right side
    201,755.88x = 39,023,162,020.64
  5. Step 5: Solve for x
    x = 39,023,162,020.64/201,755.88
  6. Step 6: Final answer
    x = 193,417.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.