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Finding the Fourth Proportional to 125,357.73, 187,859.79 and 69,223.11

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Solution

The fourth proportional to 125,357.73, 187,859.79 and 69,223.11 is: 103,737.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,357.73 : 187,859.79 = 69,223.11 : x
  2. Step 2: Convert to fraction form
    125,357.73/187,859.79 = 69,223.11/x
  3. Step 3: Cross multiply
    125,357.73x = 187,859.79 × 69,223.11
  4. Step 4: Simplify right side
    125,357.73x = 13,004,238,203.27
  5. Step 5: Solve for x
    x = 13,004,238,203.27/125,357.73
  6. Step 6: Final answer
    x = 103,737.03

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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.