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Finding the Fourth Proportional to 54,649.16, 75,759.77 and 51,655.71

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Solution

The fourth proportional to 54,649.16, 75,759.77 and 51,655.71 is: 71,609.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,649.16 : 75,759.77 = 51,655.71 : x
  2. Step 2: Convert to fraction form
    54,649.16/75,759.77 = 51,655.71/x
  3. Step 3: Cross multiply
    54,649.16x = 75,759.77 × 51,655.71
  4. Step 4: Simplify right side
    54,649.16x = 3,913,424,450.51
  5. Step 5: Solve for x
    x = 3,913,424,450.51/54,649.16
  6. Step 6: Final answer
    x = 71,609.96

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.