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Finding the Fourth Proportional to 114,510.20, 171,801.30 and 55,347.80

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Solution

The fourth proportional to 114,510.20, 171,801.30 and 55,347.80 is: 83,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,510.20 : 171,801.30 = 55,347.80 : x
  2. Step 2: Convert to fraction form
    114,510.20/171,801.30 = 55,347.80/x
  3. Step 3: Cross multiply
    114,510.20x = 171,801.30 × 55,347.80
  4. Step 4: Simplify right side
    114,510.20x = 9,508,823,992.14
  5. Step 5: Solve for x
    x = 9,508,823,992.14/114,510.20
  6. Step 6: Final answer
    x = 83,039.10

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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.