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Finding the Fourth Proportional to 124,474.67, 171,790.50 and 76,066.64

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Solution

The fourth proportional to 124,474.67, 171,790.50 and 76,066.64 is: 104,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,474.67 : 171,790.50 = 76,066.64 : x
  2. Step 2: Convert to fraction form
    124,474.67/171,790.50 = 76,066.64/x
  3. Step 3: Cross multiply
    124,474.67x = 171,790.50 × 76,066.64
  4. Step 4: Simplify right side
    124,474.67x = 13,067,526,118.92
  5. Step 5: Solve for x
    x = 13,067,526,118.92/124,474.67
  6. Step 6: Final answer
    x = 104,981.41

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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.