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Finding the Fourth Proportional to 64,301.69, 96,600.36 and 45,369.90

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Solution

The fourth proportional to 64,301.69, 96,600.36 and 45,369.90 is: 68,159.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,301.69 : 96,600.36 = 45,369.90 : x
  2. Step 2: Convert to fraction form
    64,301.69/96,600.36 = 45,369.90/x
  3. Step 3: Cross multiply
    64,301.69x = 96,600.36 × 45,369.90
  4. Step 4: Simplify right side
    64,301.69x = 4,382,748,843.30
  5. Step 5: Solve for x
    x = 4,382,748,843.30/64,301.69
  6. Step 6: Final answer
    x = 68,159.15

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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.