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Finding the Fourth Proportional to 69,970.98, 104,979.16 and 41,886.66

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Solution

The fourth proportional to 69,970.98, 104,979.16 and 41,886.66 is: 62,843.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,970.98 : 104,979.16 = 41,886.66 : x
  2. Step 2: Convert to fraction form
    69,970.98/104,979.16 = 41,886.66/x
  3. Step 3: Cross multiply
    69,970.98x = 104,979.16 × 41,886.66
  4. Step 4: Simplify right side
    69,970.98x = 4,397,226,382.01
  5. Step 5: Solve for x
    x = 4,397,226,382.01/69,970.98
  6. Step 6: Final answer
    x = 62,843.57

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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.