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Finding the Fourth Proportional to 114,659.20, 171,890.79 and 43,542.01

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Solution

The fourth proportional to 114,659.20, 171,890.79 and 43,542.01 is: 65,275.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,659.20 : 171,890.79 = 43,542.01 : x
  2. Step 2: Convert to fraction form
    114,659.20/171,890.79 = 43,542.01/x
  3. Step 3: Cross multiply
    114,659.20x = 171,890.79 × 43,542.01
  4. Step 4: Simplify right side
    114,659.20x = 7,484,470,497.09
  5. Step 5: Solve for x
    x = 7,484,470,497.09/114,659.20
  6. Step 6: Final answer
    x = 65,275.80

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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.