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Finding the Fourth Proportional to 74,290.72, 102,479.70 and 44,046.94

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Solution

The fourth proportional to 74,290.72, 102,479.70 and 44,046.94 is: 60,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,290.72 : 102,479.70 = 44,046.94 : x
  2. Step 2: Convert to fraction form
    74,290.72/102,479.70 = 44,046.94/x
  3. Step 3: Cross multiply
    74,290.72x = 102,479.70 × 44,046.94
  4. Step 4: Simplify right side
    74,290.72x = 4,513,917,197.12
  5. Step 5: Solve for x
    x = 4,513,917,197.12/74,290.72
  6. Step 6: Final answer
    x = 60,760.18

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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.