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Finding the Fourth Proportional to 85,048.79, 127,574.40 and 29,644.79

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Solution

The fourth proportional to 85,048.79, 127,574.40 and 29,644.79 is: 44,467.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,048.79 : 127,574.40 = 29,644.79 : x
  2. Step 2: Convert to fraction form
    85,048.79/127,574.40 = 29,644.79/x
  3. Step 3: Cross multiply
    85,048.79x = 127,574.40 × 29,644.79
  4. Step 4: Simplify right side
    85,048.79x = 3,781,916,297.38
  5. Step 5: Solve for x
    x = 3,781,916,297.38/85,048.79
  6. Step 6: Final answer
    x = 44,467.61

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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.