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Finding the Fourth Proportional to 54,866.88, 75,720.96 and 45,898.56

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Solution

The fourth proportional to 54,866.88, 75,720.96 and 45,898.56 is: 63,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,866.88 : 75,720.96 = 45,898.56 : x
  2. Step 2: Convert to fraction form
    54,866.88/75,720.96 = 45,898.56/x
  3. Step 3: Cross multiply
    54,866.88x = 75,720.96 × 45,898.56
  4. Step 4: Simplify right side
    54,866.88x = 3,475,483,025.82
  5. Step 5: Solve for x
    x = 3,475,483,025.82/54,866.88
  6. Step 6: Final answer
    x = 63,343.92

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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.