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Finding the Fourth Proportional to 235,431.92, 353,207.18 and 66,952.25

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Solution

The fourth proportional to 235,431.92, 353,207.18 and 66,952.25 is: 100,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,431.92 : 353,207.18 = 66,952.25 : x
  2. Step 2: Convert to fraction form
    235,431.92/353,207.18 = 66,952.25/x
  3. Step 3: Cross multiply
    235,431.92x = 353,207.18 × 66,952.25
  4. Step 4: Simplify right side
    235,431.92x = 23,648,013,316.36
  5. Step 5: Solve for x
    x = 23,648,013,316.36/235,431.92
  6. Step 6: Final answer
    x = 100,445.23

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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.