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Finding the Fourth Proportional to 229,012.73, 315,746.97 and 163,679.53

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Solution

The fourth proportional to 229,012.73, 315,746.97 and 163,679.53 is: 225,670.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,012.73 : 315,746.97 = 163,679.53 : x
  2. Step 2: Convert to fraction form
    229,012.73/315,746.97 = 163,679.53/x
  3. Step 3: Cross multiply
    229,012.73x = 315,746.97 × 163,679.53
  4. Step 4: Simplify right side
    229,012.73x = 51,681,315,648.52
  5. Step 5: Solve for x
    x = 51,681,315,648.52/229,012.73
  6. Step 6: Final answer
    x = 225,670.06

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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.