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Finding the Fourth Proportional to 330,715.22, 456,373.79 and 194,754.90

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Solution

The fourth proportional to 330,715.22, 456,373.79 and 194,754.90 is: 268,753.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,715.22 : 456,373.79 = 194,754.90 : x
  2. Step 2: Convert to fraction form
    330,715.22/456,373.79 = 194,754.90/x
  3. Step 3: Cross multiply
    330,715.22x = 456,373.79 × 194,754.90
  4. Step 4: Simplify right side
    330,715.22x = 88,881,030,860.30
  5. Step 5: Solve for x
    x = 88,881,030,860.30/330,715.22
  6. Step 6: Final answer
    x = 268,753.98

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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.