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Finding the Fourth Proportional to 106,425.73, 146,860.81 and 58,679.47

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Solution

The fourth proportional to 106,425.73, 146,860.81 and 58,679.47 is: 80,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,425.73 : 146,860.81 = 58,679.47 : x
  2. Step 2: Convert to fraction form
    106,425.73/146,860.81 = 58,679.47/x
  3. Step 3: Cross multiply
    106,425.73x = 146,860.81 × 58,679.47
  4. Step 4: Simplify right side
    106,425.73x = 8,617,714,861.52
  5. Step 5: Solve for x
    x = 8,617,714,861.52/106,425.73
  6. Step 6: Final answer
    x = 80,973.98

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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.