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Finding the Fourth Proportional to 235,863.40, 353,211.90 and 156,548.20

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Solution

The fourth proportional to 235,863.40, 353,211.90 and 156,548.20 is: 234,435.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,863.40 : 353,211.90 = 156,548.20 : x
  2. Step 2: Convert to fraction form
    235,863.40/353,211.90 = 156,548.20/x
  3. Step 3: Cross multiply
    235,863.40x = 353,211.90 × 156,548.20
  4. Step 4: Simplify right side
    235,863.40x = 55,294,687,163.58
  5. Step 5: Solve for x
    x = 55,294,687,163.58/235,863.40
  6. Step 6: Final answer
    x = 234,435.22

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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.