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Finding the Fourth Proportional to 235,863.96, 325,447.77 and 139,098.25

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Solution

The fourth proportional to 235,863.96, 325,447.77 and 139,098.25 is: 191,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,863.96 : 325,447.77 = 139,098.25 : x
  2. Step 2: Convert to fraction form
    235,863.96/325,447.77 = 139,098.25/x
  3. Step 3: Cross multiply
    235,863.96x = 325,447.77 × 139,098.25
  4. Step 4: Simplify right side
    235,863.96x = 45,269,215,273.40
  5. Step 5: Solve for x
    x = 45,269,215,273.40/235,863.96
  6. Step 6: Final answer
    x = 191,929.34

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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.