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Finding the Fourth Proportional to 89,484.62, 123,485.62 and 49,198.07

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Solution

The fourth proportional to 89,484.62, 123,485.62 and 49,198.07 is: 67,891.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,484.62 : 123,485.62 = 49,198.07 : x
  2. Step 2: Convert to fraction form
    89,484.62/123,485.62 = 49,198.07/x
  3. Step 3: Cross multiply
    89,484.62x = 123,485.62 × 49,198.07
  4. Step 4: Simplify right side
    89,484.62x = 6,075,254,862.04
  5. Step 5: Solve for x
    x = 6,075,254,862.04/89,484.62
  6. Step 6: Final answer
    x = 67,891.61

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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.