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Finding the Fourth Proportional to 260,348.59, 390,446.33 and 110,587.69

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Solution

The fourth proportional to 260,348.59, 390,446.33 and 110,587.69 is: 165,849.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,348.59 : 390,446.33 = 110,587.69 : x
  2. Step 2: Convert to fraction form
    260,348.59/390,446.33 = 110,587.69/x
  3. Step 3: Cross multiply
    260,348.59x = 390,446.33 × 110,587.69
  4. Step 4: Simplify right side
    260,348.59x = 43,178,557,004.03
  5. Step 5: Solve for x
    x = 43,178,557,004.03/260,348.59
  6. Step 6: Final answer
    x = 165,849.02

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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.