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Finding the Fourth Proportional to 113,401.80, 170,102.70 and 95,905.80

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Solution

The fourth proportional to 113,401.80, 170,102.70 and 95,905.80 is: 143,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,401.80 : 170,102.70 = 95,905.80 : x
  2. Step 2: Convert to fraction form
    113,401.80/170,102.70 = 95,905.80/x
  3. Step 3: Cross multiply
    113,401.80x = 170,102.70 × 95,905.80
  4. Step 4: Simplify right side
    113,401.80x = 16,313,835,525.66
  5. Step 5: Solve for x
    x = 16,313,835,525.66/113,401.80
  6. Step 6: Final answer
    x = 143,858.70

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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.