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Finding the Fourth Proportional to 89,803.98, 123,936.93 and 49,525.65

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Solution

The fourth proportional to 89,803.98, 123,936.93 and 49,525.65 is: 68,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,803.98 : 123,936.93 = 49,525.65 : x
  2. Step 2: Convert to fraction form
    89,803.98/123,936.93 = 49,525.65/x
  3. Step 3: Cross multiply
    89,803.98x = 123,936.93 × 49,525.65
  4. Step 4: Simplify right side
    89,803.98x = 6,138,057,017.25
  5. Step 5: Solve for x
    x = 6,138,057,017.25/89,803.98
  6. Step 6: Final answer
    x = 68,349.50

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1.5x scale

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.