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Finding the Fourth Proportional to 330,766.99, 456,478.37 and 194,891.50

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Solution

The fourth proportional to 330,766.99, 456,478.37 and 194,891.50 is: 268,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,766.99 : 456,478.37 = 194,891.50 : x
  2. Step 2: Convert to fraction form
    330,766.99/456,478.37 = 194,891.50/x
  3. Step 3: Cross multiply
    330,766.99x = 456,478.37 × 194,891.50
  4. Step 4: Simplify right side
    330,766.99x = 88,963,754,246.86
  5. Step 5: Solve for x
    x = 88,963,754,246.86/330,766.99
  6. Step 6: Final answer
    x = 268,962.01

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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.