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Finding the Fourth Proportional to 113,381.80, 170,072.70 and 101,134.60

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Solution

The fourth proportional to 113,381.80, 170,072.70 and 101,134.60 is: 151,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,381.80 : 170,072.70 = 101,134.60 : x
  2. Step 2: Convert to fraction form
    113,381.80/170,072.70 = 101,134.60/x
  3. Step 3: Cross multiply
    113,381.80x = 170,072.70 × 101,134.60
  4. Step 4: Simplify right side
    113,381.80x = 17,200,234,485.42
  5. Step 5: Solve for x
    x = 17,200,234,485.42/113,381.80
  6. Step 6: Final answer
    x = 151,701.90

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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.