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Finding the Fourth Proportional to 481,045.32, 721,560.42 and 165,504.96

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Solution

The fourth proportional to 481,045.32, 721,560.42 and 165,504.96 is: 248,254.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,045.32 : 721,560.42 = 165,504.96 : x
  2. Step 2: Convert to fraction form
    481,045.32/721,560.42 = 165,504.96/x
  3. Step 3: Cross multiply
    481,045.32x = 721,560.42 × 165,504.96
  4. Step 4: Simplify right side
    481,045.32x = 119,421,828,449.68
  5. Step 5: Solve for x
    x = 119,421,828,449.68/481,045.32
  6. Step 6: Final answer
    x = 248,254.84

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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.