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Finding the Fourth Proportional to 353,171.40, 529,732.80 and 113,281.80

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Solution

The fourth proportional to 353,171.40, 529,732.80 and 113,281.80 is: 169,914.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,171.40 : 529,732.80 = 113,281.80 : x
  2. Step 2: Convert to fraction form
    353,171.40/529,732.80 = 113,281.80/x
  3. Step 3: Cross multiply
    353,171.40x = 529,732.80 × 113,281.80
  4. Step 4: Simplify right side
    353,171.40x = 60,009,085,103.04
  5. Step 5: Solve for x
    x = 60,009,085,103.04/353,171.40
  6. Step 6: Final answer
    x = 169,914.91

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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.