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Finding the Fourth Proportional to 330,700.62, 456,368.94 and 194,740.50

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Solution

The fourth proportional to 330,700.62, 456,368.94 and 194,740.50 is: 268,743.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,700.62 : 456,368.94 = 194,740.50 : x
  2. Step 2: Convert to fraction form
    330,700.62/456,368.94 = 194,740.50/x
  3. Step 3: Cross multiply
    330,700.62x = 456,368.94 × 194,740.50
  4. Step 4: Simplify right side
    330,700.62x = 88,873,515,560.07
  5. Step 5: Solve for x
    x = 88,873,515,560.07/330,700.62
  6. Step 6: Final answer
    x = 268,743.12

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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.