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Finding the Fourth Proportional to 74,641.62, 102,998.66 and 44,422.07

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Solution

The fourth proportional to 74,641.62, 102,998.66 and 44,422.07 is: 61,298.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,641.62 : 102,998.66 = 44,422.07 : x
  2. Step 2: Convert to fraction form
    74,641.62/102,998.66 = 44,422.07/x
  3. Step 3: Cross multiply
    74,641.62x = 102,998.66 × 44,422.07
  4. Step 4: Simplify right side
    74,641.62x = 4,575,412,947.32
  5. Step 5: Solve for x
    x = 4,575,412,947.32/74,641.62
  6. Step 6: Final answer
    x = 61,298.41

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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.