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Finding the Fourth Proportional to 56,243.54, 77,623.92 and 54,397.52

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Solution

The fourth proportional to 56,243.54, 77,623.92 and 54,397.52 is: 75,076.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,243.54 : 77,623.92 = 54,397.52 : x
  2. Step 2: Convert to fraction form
    56,243.54/77,623.92 = 54,397.52/x
  3. Step 3: Cross multiply
    56,243.54x = 77,623.92 × 54,397.52
  4. Step 4: Simplify right side
    56,243.54x = 4,222,548,740.68
  5. Step 5: Solve for x
    x = 4,222,548,740.68/56,243.54
  6. Step 6: Final answer
    x = 75,076.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.