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Finding the Fourth Proportional to 48,913.70, 73,261.20 and 42,352.70

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Solution

The fourth proportional to 48,913.70, 73,261.20 and 42,352.70 is: 63,434.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,913.70 : 73,261.20 = 42,352.70 : x
  2. Step 2: Convert to fraction form
    48,913.70/73,261.20 = 42,352.70/x
  3. Step 3: Cross multiply
    48,913.70x = 73,261.20 × 42,352.70
  4. Step 4: Simplify right side
    48,913.70x = 3,102,809,625.24
  5. Step 5: Solve for x
    x = 3,102,809,625.24/48,913.70
  6. Step 6: Final answer
    x = 63,434.37

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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.