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Finding the Fourth Proportional to 111,462.66, 166,999.32 and 92,862.36

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Solution

The fourth proportional to 111,462.66, 166,999.32 and 92,862.36 is: 139,131.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,462.66 : 166,999.32 = 92,862.36 : x
  2. Step 2: Convert to fraction form
    111,462.66/166,999.32 = 92,862.36/x
  3. Step 3: Cross multiply
    111,462.66x = 166,999.32 × 92,862.36
  4. Step 4: Simplify right side
    111,462.66x = 15,507,950,973.60
  5. Step 5: Solve for x
    x = 15,507,950,973.60/111,462.66
  6. Step 6: Final answer
    x = 139,131.36

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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.