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Finding the Fourth Proportional to 78,024.79, 107,674.17 and 44,040.41

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Solution

The fourth proportional to 78,024.79, 107,674.17 and 44,040.41 is: 60,775.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,024.79 : 107,674.17 = 44,040.41 : x
  2. Step 2: Convert to fraction form
    78,024.79/107,674.17 = 44,040.41/x
  3. Step 3: Cross multiply
    78,024.79x = 107,674.17 × 44,040.41
  4. Step 4: Simplify right side
    78,024.79x = 4,742,014,593.21
  5. Step 5: Solve for x
    x = 4,742,014,593.21/78,024.79
  6. Step 6: Final answer
    x = 60,775.74

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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.