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Finding the Fourth Proportional to 235,453.78, 353,180.60 and 69,241.78

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Solution

The fourth proportional to 235,453.78, 353,180.60 and 69,241.78 is: 103,862.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,453.78 : 353,180.60 = 69,241.78 : x
  2. Step 2: Convert to fraction form
    235,453.78/353,180.60 = 69,241.78/x
  3. Step 3: Cross multiply
    235,453.78x = 353,180.60 × 69,241.78
  4. Step 4: Simplify right side
    235,453.78x = 24,454,852,176.31
  5. Step 5: Solve for x
    x = 24,454,852,176.31/235,453.78
  6. Step 6: Final answer
    x = 103,862.65

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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.