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Finding the Fourth Proportional to 107,388.92, 148,198.55 and 58,992.89

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Solution

The fourth proportional to 107,388.92, 148,198.55 and 58,992.89 is: 81,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,388.92 : 148,198.55 = 58,992.89 : x
  2. Step 2: Convert to fraction form
    107,388.92/148,198.55 = 58,992.89/x
  3. Step 3: Cross multiply
    107,388.92x = 148,198.55 × 58,992.89
  4. Step 4: Simplify right side
    107,388.92x = 8,742,660,555.97
  5. Step 5: Solve for x
    x = 8,742,660,555.97/107,388.92
  6. Step 6: Final answer
    x = 81,411.20

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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.