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Finding the Fourth Proportional to 125,583.65, 173,304.73 and 68,222.47

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Solution

The fourth proportional to 125,583.65, 173,304.73 and 68,222.47 is: 94,146.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,583.65 : 173,304.73 = 68,222.47 : x
  2. Step 2: Convert to fraction form
    125,583.65/173,304.73 = 68,222.47/x
  3. Step 3: Cross multiply
    125,583.65x = 173,304.73 × 68,222.47
  4. Step 4: Simplify right side
    125,583.65x = 11,823,276,139.47
  5. Step 5: Solve for x
    x = 11,823,276,139.47/125,583.65
  6. Step 6: Final answer
    x = 94,146.62

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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.