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Finding the Fourth Proportional to 64,079.53, 96,064.56 and 45,300.49

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Solution

The fourth proportional to 64,079.53, 96,064.56 and 45,300.49 is: 67,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,079.53 : 96,064.56 = 45,300.49 : x
  2. Step 2: Convert to fraction form
    64,079.53/96,064.56 = 45,300.49/x
  3. Step 3: Cross multiply
    64,079.53x = 96,064.56 × 45,300.49
  4. Step 4: Simplify right side
    64,079.53x = 4,351,771,639.63
  5. Step 5: Solve for x
    x = 4,351,771,639.63/64,079.53
  6. Step 6: Final answer
    x = 67,912.04

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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.