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Finding the Fourth Proportional to 229,281.28, 343,153.28 and 168,161.92

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Solution

The fourth proportional to 229,281.28, 343,153.28 and 168,161.92 is: 251,679.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,281.28 : 343,153.28 = 168,161.92 : x
  2. Step 2: Convert to fraction form
    229,281.28/343,153.28 = 168,161.92/x
  3. Step 3: Cross multiply
    229,281.28x = 343,153.28 × 168,161.92
  4. Step 4: Simplify right side
    229,281.28x = 57,705,314,419.10
  5. Step 5: Solve for x
    x = 57,705,314,419.10/229,281.28
  6. Step 6: Final answer
    x = 251,679.14

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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.