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Finding the Fourth Proportional to 447,181.80, 670,541.88 and 131,597.76

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Solution

The fourth proportional to 447,181.80, 670,541.88 and 131,597.76 is: 197,328.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,181.80 : 670,541.88 = 131,597.76 : x
  2. Step 2: Convert to fraction form
    447,181.80/670,541.88 = 131,597.76/x
  3. Step 3: Cross multiply
    447,181.80x = 670,541.88 × 131,597.76
  4. Step 4: Simplify right side
    447,181.80x = 88,241,809,394.19
  5. Step 5: Solve for x
    x = 88,241,809,394.19/447,181.80
  6. Step 6: Final answer
    x = 197,328.71

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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.