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Finding the Fourth Proportional to 64,078.53, 96,063.06 and 45,299.49

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Solution

The fourth proportional to 64,078.53, 96,063.06 and 45,299.49 is: 67,910.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,078.53 : 96,063.06 = 45,299.49 : x
  2. Step 2: Convert to fraction form
    64,078.53/96,063.06 = 45,299.49/x
  3. Step 3: Cross multiply
    64,078.53x = 96,063.06 × 45,299.49
  4. Step 4: Simplify right side
    64,078.53x = 4,351,607,625.84
  5. Step 5: Solve for x
    x = 4,351,607,625.84/64,078.53
  6. Step 6: Final answer
    x = 67,910.54

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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.