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Finding the Fourth Proportional to 336,922, 505,213.80 and 112,203.04

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Solution

The fourth proportional to 336,922, 505,213.80 and 112,203.04 is: 168,248.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,922 : 505,213.80 = 112,203.04 : x
  2. Step 2: Convert to fraction form
    336,922/505,213.80 = 112,203.04/x
  3. Step 3: Cross multiply
    336,922x = 505,213.80 × 112,203.04
  4. Step 4: Simplify right side
    336,922x = 56,686,524,209.95
  5. Step 5: Solve for x
    x = 56,686,524,209.95/336,922
  6. Step 6: Final answer
    x = 168,248.21

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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.