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Finding the Fourth Proportional to 89,797.23, 123,927.57 and 49,518.90

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Solution

The fourth proportional to 89,797.23, 123,927.57 and 49,518.90 is: 68,340.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,797.23 : 123,927.57 = 49,518.90 : x
  2. Step 2: Convert to fraction form
    89,797.23/123,927.57 = 49,518.90/x
  3. Step 3: Cross multiply
    89,797.23x = 123,927.57 × 49,518.90
  4. Step 4: Simplify right side
    89,797.23x = 6,136,756,946.07
  5. Step 5: Solve for x
    x = 6,136,756,946.07/89,797.23
  6. Step 6: Final answer
    x = 68,340.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.