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Finding the Fourth Proportional to 235,521.95, 353,229.86 and 67,038.54

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Solution

The fourth proportional to 235,521.95, 353,229.86 and 67,038.54 is: 100,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,521.95 : 353,229.86 = 67,038.54 : x
  2. Step 2: Convert to fraction form
    235,521.95/353,229.86 = 67,038.54/x
  3. Step 3: Cross multiply
    235,521.95x = 353,229.86 × 67,038.54
  4. Step 4: Simplify right side
    235,521.95x = 23,680,014,551.61
  5. Step 5: Solve for x
    x = 23,680,014,551.61/235,521.95
  6. Step 6: Final answer
    x = 100,542.71

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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.