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Finding the Fourth Proportional to 260,624.44, 390,849.18 and 165,796.12

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Solution

The fourth proportional to 260,624.44, 390,849.18 and 165,796.12 is: 248,638.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,624.44 : 390,849.18 = 165,796.12 : x
  2. Step 2: Convert to fraction form
    260,624.44/390,849.18 = 165,796.12/x
  3. Step 3: Cross multiply
    260,624.44x = 390,849.18 × 165,796.12
  4. Step 4: Simplify right side
    260,624.44x = 64,801,277,549.18
  5. Step 5: Solve for x
    x = 64,801,277,549.18/260,624.44
  6. Step 6: Final answer
    x = 248,638.53

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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.