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Finding the Fourth Proportional to 89,927.80, 134,891.70 and 60,359.80

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Solution

The fourth proportional to 89,927.80, 134,891.70 and 60,359.80 is: 90,539.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,927.80 : 134,891.70 = 60,359.80 : x
  2. Step 2: Convert to fraction form
    89,927.80/134,891.70 = 60,359.80/x
  3. Step 3: Cross multiply
    89,927.80x = 134,891.70 × 60,359.80
  4. Step 4: Simplify right side
    89,927.80x = 8,142,036,033.66
  5. Step 5: Solve for x
    x = 8,142,036,033.66/89,927.80
  6. Step 6: Final answer
    x = 90,539.70

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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.