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Finding the Fourth Proportional to 466,511.54, 699,768.72 and 129,570.57

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Solution

The fourth proportional to 466,511.54, 699,768.72 and 129,570.57 is: 194,356.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,511.54 : 699,768.72 = 129,570.57 : x
  2. Step 2: Convert to fraction form
    466,511.54/699,768.72 = 129,570.57/x
  3. Step 3: Cross multiply
    466,511.54x = 699,768.72 × 129,570.57
  4. Step 4: Simplify right side
    466,511.54x = 90,669,431,918.57
  5. Step 5: Solve for x
    x = 90,669,431,918.57/466,511.54
  6. Step 6: Final answer
    x = 194,356.25

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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.