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Finding the Fourth Proportional to 77,927.80, 116,891.70 and 62,375.80

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Solution

The fourth proportional to 77,927.80, 116,891.70 and 62,375.80 is: 93,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,927.80 : 116,891.70 = 62,375.80 : x
  2. Step 2: Convert to fraction form
    77,927.80/116,891.70 = 62,375.80/x
  3. Step 3: Cross multiply
    77,927.80x = 116,891.70 × 62,375.80
  4. Step 4: Simplify right side
    77,927.80x = 7,291,213,300.86
  5. Step 5: Solve for x
    x = 7,291,213,300.86/77,927.80
  6. Step 6: Final answer
    x = 93,563.70

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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.