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Finding the Fourth Proportional to 353,165.70, 530,040.15 and 163,917.30

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Solution

The fourth proportional to 353,165.70, 530,040.15 and 163,917.30 is: 246,011.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,165.70 : 530,040.15 = 163,917.30 : x
  2. Step 2: Convert to fraction form
    353,165.70/530,040.15 = 163,917.30/x
  3. Step 3: Cross multiply
    353,165.70x = 530,040.15 × 163,917.30
  4. Step 4: Simplify right side
    353,165.70x = 86,882,750,279.60
  5. Step 5: Solve for x
    x = 86,882,750,279.60/353,165.70
  6. Step 6: Final answer
    x = 246,011.29

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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.