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Finding the Fourth Proportional to 77,642.54, 107,144.22 and 43,652.46

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Solution

The fourth proportional to 77,642.54, 107,144.22 and 43,652.46 is: 60,239.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,642.54 : 107,144.22 = 43,652.46 : x
  2. Step 2: Convert to fraction form
    77,642.54/107,144.22 = 43,652.46/x
  3. Step 3: Cross multiply
    77,642.54x = 107,144.22 × 43,652.46
  4. Step 4: Simplify right side
    77,642.54x = 4,677,109,045.64
  5. Step 5: Solve for x
    x = 4,677,109,045.64/77,642.54
  6. Step 6: Final answer
    x = 60,239.00

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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.