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Finding the Fourth Proportional to 105,017.92, 157,351.60 and 73,797.28

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Solution

The fourth proportional to 105,017.92, 157,351.60 and 73,797.28 is: 110,572.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,017.92 : 157,351.60 = 73,797.28 : x
  2. Step 2: Convert to fraction form
    105,017.92/157,351.60 = 73,797.28/x
  3. Step 3: Cross multiply
    105,017.92x = 157,351.60 × 73,797.28
  4. Step 4: Simplify right side
    105,017.92x = 11,612,120,083.65
  5. Step 5: Solve for x
    x = 11,612,120,083.65/105,017.92
  6. Step 6: Final answer
    x = 110,572.75

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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.