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Finding the Fourth Proportional to 69,481.34, 103,972.88 and 60,153.45

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Solution

The fourth proportional to 69,481.34, 103,972.88 and 60,153.45 is: 90,014.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,481.34 : 103,972.88 = 60,153.45 : x
  2. Step 2: Convert to fraction form
    69,481.34/103,972.88 = 60,153.45/x
  3. Step 3: Cross multiply
    69,481.34x = 103,972.88 × 60,153.45
  4. Step 4: Simplify right side
    69,481.34x = 6,254,327,137.67
  5. Step 5: Solve for x
    x = 6,254,327,137.67/69,481.34
  6. Step 6: Final answer
    x = 90,014.49

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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.