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Finding the Fourth Proportional to 113,914.80, 171,163.80 and 101,084.40

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Solution

The fourth proportional to 113,914.80, 171,163.80 and 101,084.40 is: 151,885.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,914.80 : 171,163.80 = 101,084.40 : x
  2. Step 2: Convert to fraction form
    113,914.80/171,163.80 = 101,084.40/x
  3. Step 3: Cross multiply
    113,914.80x = 171,163.80 × 101,084.40
  4. Step 4: Simplify right side
    113,914.80x = 17,301,990,024.72
  5. Step 5: Solve for x
    x = 17,301,990,024.72/113,914.80
  6. Step 6: Final answer
    x = 151,885.36

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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.