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Finding the Fourth Proportional to 368,613.36, 552,919.68 and 115,892.64

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Solution

The fourth proportional to 368,613.36, 552,919.68 and 115,892.64 is: 173,838.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,613.36 : 552,919.68 = 115,892.64 : x
  2. Step 2: Convert to fraction form
    368,613.36/552,919.68 = 115,892.64/x
  3. Step 3: Cross multiply
    368,613.36x = 552,919.68 × 115,892.64
  4. Step 4: Simplify right side
    368,613.36x = 64,079,321,423.16
  5. Step 5: Solve for x
    x = 64,079,321,423.16/368,613.36
  6. Step 6: Final answer
    x = 173,838.85

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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.