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Finding the Fourth Proportional to 54,129.71, 74,695.99 and 29,929.27

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Solution

The fourth proportional to 54,129.71, 74,695.99 and 29,929.27 is: 41,300.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,129.71 : 74,695.99 = 29,929.27 : x
  2. Step 2: Convert to fraction form
    54,129.71/74,695.99 = 29,929.27/x
  3. Step 3: Cross multiply
    54,129.71x = 74,695.99 × 29,929.27
  4. Step 4: Simplify right side
    54,129.71x = 2,235,596,452.63
  5. Step 5: Solve for x
    x = 2,235,596,452.63/54,129.71
  6. Step 6: Final answer
    x = 41,300.73

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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.