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Finding the Fourth Proportional to 234,763.66, 323,965.11 and 139,213.18

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Solution

The fourth proportional to 234,763.66, 323,965.11 and 139,213.18 is: 192,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,763.66 : 323,965.11 = 139,213.18 : x
  2. Step 2: Convert to fraction form
    234,763.66/323,965.11 = 139,213.18/x
  3. Step 3: Cross multiply
    234,763.66x = 323,965.11 × 139,213.18
  4. Step 4: Simplify right side
    234,763.66x = 45,100,213,172.15
  5. Step 5: Solve for x
    x = 45,100,213,172.15/234,763.66
  6. Step 6: Final answer
    x = 192,109.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.