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Finding the Fourth Proportional to 110,965.40, 166,448.10 and 93,250.70

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Solution

The fourth proportional to 110,965.40, 166,448.10 and 93,250.70 is: 139,876.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,965.40 : 166,448.10 = 93,250.70 : x
  2. Step 2: Convert to fraction form
    110,965.40/166,448.10 = 93,250.70/x
  3. Step 3: Cross multiply
    110,965.40x = 166,448.10 × 93,250.70
  4. Step 4: Simplify right side
    110,965.40x = 15,521,401,838.67
  5. Step 5: Solve for x
    x = 15,521,401,838.67/110,965.40
  6. Step 6: Final answer
    x = 139,876.05

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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.