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Finding the Fourth Proportional to 77,043.40, 115,451.40 and 34,936.36

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Solution

The fourth proportional to 77,043.40, 115,451.40 and 34,936.36 is: 52,352.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,043.40 : 115,451.40 = 34,936.36 : x
  2. Step 2: Convert to fraction form
    77,043.40/115,451.40 = 34,936.36/x
  3. Step 3: Cross multiply
    77,043.40x = 115,451.40 × 34,936.36
  4. Step 4: Simplify right side
    77,043.40x = 4,033,451,672.90
  5. Step 5: Solve for x
    x = 4,033,451,672.90/77,043.40
  6. Step 6: Final answer
    x = 52,352.98

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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.