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Finding the Fourth Proportional to 106,365.75, 146,782.80 and 57,968.10

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Solution

The fourth proportional to 106,365.75, 146,782.80 and 57,968.10 is: 79,994.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,365.75 : 146,782.80 = 57,968.10 : x
  2. Step 2: Convert to fraction form
    106,365.75/146,782.80 = 57,968.10/x
  3. Step 3: Cross multiply
    106,365.75x = 146,782.80 × 57,968.10
  4. Step 4: Simplify right side
    106,365.75x = 8,508,720,028.68
  5. Step 5: Solve for x
    x = 8,508,720,028.68/106,365.75
  6. Step 6: Final answer
    x = 79,994.92

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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.