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Finding the Fourth Proportional to 447,295.61, 670,713.58 and 131,711.51

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Solution

The fourth proportional to 447,295.61, 670,713.58 and 131,711.51 is: 197,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,295.61 : 670,713.58 = 131,711.51 : x
  2. Step 2: Convert to fraction form
    447,295.61/670,713.58 = 131,711.51/x
  3. Step 3: Cross multiply
    447,295.61x = 670,713.58 × 131,711.51
  4. Step 4: Simplify right side
    447,295.61x = 88,340,700,240.73
  5. Step 5: Solve for x
    x = 88,340,700,240.73/447,295.61
  6. Step 6: Final answer
    x = 197,499.59

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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.