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Finding the Fourth Proportional to 199,568.34, 299,355.75 and 66,446.46

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Solution

The fourth proportional to 199,568.34, 299,355.75 and 66,446.46 is: 99,670.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,568.34 : 299,355.75 = 66,446.46 : x
  2. Step 2: Convert to fraction form
    199,568.34/299,355.75 = 66,446.46/x
  3. Step 3: Cross multiply
    199,568.34x = 299,355.75 × 66,446.46
  4. Step 4: Simplify right side
    199,568.34x = 19,891,129,868.15
  5. Step 5: Solve for x
    x = 19,891,129,868.15/199,568.34
  6. Step 6: Final answer
    x = 99,670.77

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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.