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Finding the Fourth Proportional to 245,174.50, 367,761.77 and 78,962.50

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Solution

The fourth proportional to 245,174.50, 367,761.77 and 78,962.50 is: 118,443.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,174.50 : 367,761.77 = 78,962.50 : x
  2. Step 2: Convert to fraction form
    245,174.50/367,761.77 = 78,962.50/x
  3. Step 3: Cross multiply
    245,174.50x = 367,761.77 × 78,962.50
  4. Step 4: Simplify right side
    245,174.50x = 29,039,388,763.63
  5. Step 5: Solve for x
    x = 29,039,388,763.63/245,174.50
  6. Step 6: Final answer
    x = 118,443.76

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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.