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Finding the Fourth Proportional to 113,963.80, 171,237.30 and 101,133.40

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Solution

The fourth proportional to 113,963.80, 171,237.30 and 101,133.40 is: 151,958.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,963.80 : 171,237.30 = 101,133.40 : x
  2. Step 2: Convert to fraction form
    113,963.80/171,237.30 = 101,133.40/x
  3. Step 3: Cross multiply
    113,963.80x = 171,237.30 × 101,133.40
  4. Step 4: Simplify right side
    113,963.80x = 17,317,810,355.82
  5. Step 5: Solve for x
    x = 17,317,810,355.82/113,963.80
  6. Step 6: Final answer
    x = 151,958.87

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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.