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Finding the Fourth Proportional to 69,164.66, 103,726.47 and 29,712.56

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Solution

The fourth proportional to 69,164.66, 103,726.47 and 29,712.56 is: 44,560.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,164.66 : 103,726.47 = 29,712.56 : x
  2. Step 2: Convert to fraction form
    69,164.66/103,726.47 = 29,712.56/x
  3. Step 3: Cross multiply
    69,164.66x = 103,726.47 × 29,712.56
  4. Step 4: Simplify right side
    69,164.66x = 3,081,978,963.46
  5. Step 5: Solve for x
    x = 3,081,978,963.46/69,164.66
  6. Step 6: Final answer
    x = 44,560.02

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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.