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Finding the Fourth Proportional to 235,372.89, 324,861.84 and 139,861.11

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Solution

The fourth proportional to 235,372.89, 324,861.84 and 139,861.11 is: 193,036.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,372.89 : 324,861.84 = 139,861.11 : x
  2. Step 2: Convert to fraction form
    235,372.89/324,861.84 = 139,861.11/x
  3. Step 3: Cross multiply
    235,372.89x = 324,861.84 × 139,861.11
  4. Step 4: Simplify right side
    235,372.89x = 45,435,537,539.04
  5. Step 5: Solve for x
    x = 45,435,537,539.04/235,372.89
  6. Step 6: Final answer
    x = 193,036.41

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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.