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Finding the Fourth Proportional to 115,762.53, 173,647.44 and 39,860.28

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Solution

The fourth proportional to 115,762.53, 173,647.44 and 39,860.28 is: 59,791.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,762.53 : 173,647.44 = 39,860.28 : x
  2. Step 2: Convert to fraction form
    115,762.53/173,647.44 = 39,860.28/x
  3. Step 3: Cross multiply
    115,762.53x = 173,647.44 × 39,860.28
  4. Step 4: Simplify right side
    115,762.53x = 6,921,635,579.68
  5. Step 5: Solve for x
    x = 6,921,635,579.68/115,762.53
  6. Step 6: Final answer
    x = 59,791.68

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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.