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Finding the Fourth Proportional to 247,201.97, 341,129.26 and 139,774.25

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Solution

The fourth proportional to 247,201.97, 341,129.26 and 139,774.25 is: 192,883.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,201.97 : 341,129.26 = 139,774.25 : x
  2. Step 2: Convert to fraction form
    247,201.97/341,129.26 = 139,774.25/x
  3. Step 3: Cross multiply
    247,201.97x = 341,129.26 × 139,774.25
  4. Step 4: Simplify right side
    247,201.97x = 47,681,086,972.94
  5. Step 5: Solve for x
    x = 47,681,086,972.94/247,201.97
  6. Step 6: Final answer
    x = 192,883.12

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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.