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Finding the Fourth Proportional to 353,181.40, 529,747.80 and 113,291.80

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Solution

The fourth proportional to 353,181.40, 529,747.80 and 113,291.80 is: 169,929.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,181.40 : 529,747.80 = 113,291.80 : x
  2. Step 2: Convert to fraction form
    353,181.40/529,747.80 = 113,291.80/x
  3. Step 3: Cross multiply
    353,181.40x = 529,747.80 × 113,291.80
  4. Step 4: Simplify right side
    353,181.40x = 60,016,081,808.04
  5. Step 5: Solve for x
    x = 60,016,081,808.04/353,181.40
  6. Step 6: Final answer
    x = 169,929.91

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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.