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Finding the Fourth Proportional to 368,399.28, 552,582.48 and 115,673.76

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Solution

The fourth proportional to 368,399.28, 552,582.48 and 115,673.76 is: 173,505.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,399.28 : 552,582.48 = 115,673.76 : x
  2. Step 2: Convert to fraction form
    368,399.28/552,582.48 = 115,673.76/x
  3. Step 3: Cross multiply
    368,399.28x = 552,582.48 × 115,673.76
  4. Step 4: Simplify right side
    368,399.28x = 63,919,293,171.72
  5. Step 5: Solve for x
    x = 63,919,293,171.72/368,399.28
  6. Step 6: Final answer
    x = 173,505.48

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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.