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Finding the Fourth Proportional to 235,549.44, 353,110.32 and 85,683.76

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Solution

The fourth proportional to 235,549.44, 353,110.32 and 85,683.76 is: 128,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,549.44 : 353,110.32 = 85,683.76 : x
  2. Step 2: Convert to fraction form
    235,549.44/353,110.32 = 85,683.76/x
  3. Step 3: Cross multiply
    235,549.44x = 353,110.32 × 85,683.76
  4. Step 4: Simplify right side
    235,549.44x = 30,255,819,912.40
  5. Step 5: Solve for x
    x = 30,255,819,912.40/235,549.44
  6. Step 6: Final answer
    x = 128,447.85

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1.5x scale

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.