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Finding the Fourth Proportional to 150,654.87, 207,903.15 and 82,672.98

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Solution

The fourth proportional to 150,654.87, 207,903.15 and 82,672.98 is: 114,088.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,654.87 : 207,903.15 = 82,672.98 : x
  2. Step 2: Convert to fraction form
    150,654.87/207,903.15 = 82,672.98/x
  3. Step 3: Cross multiply
    150,654.87x = 207,903.15 × 82,672.98
  4. Step 4: Simplify right side
    150,654.87x = 17,187,972,961.89
  5. Step 5: Solve for x
    x = 17,187,972,961.89/150,654.87
  6. Step 6: Final answer
    x = 114,088.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.