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Finding the Fourth Proportional to 192,445.03, 288,595.74 and 66,049.40

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Solution

The fourth proportional to 192,445.03, 288,595.74 and 66,049.40 is: 99,049.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,445.03 : 288,595.74 = 66,049.40 : x
  2. Step 2: Convert to fraction form
    192,445.03/288,595.74 = 66,049.40/x
  3. Step 3: Cross multiply
    192,445.03x = 288,595.74 × 66,049.40
  4. Step 4: Simplify right side
    192,445.03x = 19,061,576,438.73
  5. Step 5: Solve for x
    x = 19,061,576,438.73/192,445.03
  6. Step 6: Final answer
    x = 99,049.46

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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.