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Finding the Fourth Proportional to 104,466.78, 144,165.18 and 56,720.52

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Solution

The fourth proportional to 104,466.78, 144,165.18 and 56,720.52 is: 78,274.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,466.78 : 144,165.18 = 56,720.52 : x
  2. Step 2: Convert to fraction form
    104,466.78/144,165.18 = 56,720.52/x
  3. Step 3: Cross multiply
    104,466.78x = 144,165.18 × 56,720.52
  4. Step 4: Simplify right side
    104,466.78x = 8,177,123,975.49
  5. Step 5: Solve for x
    x = 8,177,123,975.49/104,466.78
  6. Step 6: Final answer
    x = 78,274.87

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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.