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Finding the Fourth Proportional to 393,774.93, 590,891.76 and 166,056.60

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Solution

The fourth proportional to 393,774.93, 590,891.76 and 166,056.60 is: 249,181.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,774.93 : 590,891.76 = 166,056.60 : x
  2. Step 2: Convert to fraction form
    393,774.93/590,891.76 = 166,056.60/x
  3. Step 3: Cross multiply
    393,774.93x = 590,891.76 × 166,056.60
  4. Step 4: Simplify right side
    393,774.93x = 98,121,476,633.62
  5. Step 5: Solve for x
    x = 98,121,476,633.62/393,774.93
  6. Step 6: Final answer
    x = 249,181.62

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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.