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Finding the Fourth Proportional to 166,999.20, 250,498.80 and 146,263.20

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Solution

The fourth proportional to 166,999.20, 250,498.80 and 146,263.20 is: 219,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,999.20 : 250,498.80 = 146,263.20 : x
  2. Step 2: Convert to fraction form
    166,999.20/250,498.80 = 146,263.20/x
  3. Step 3: Cross multiply
    166,999.20x = 250,498.80 × 146,263.20
  4. Step 4: Simplify right side
    166,999.20x = 36,638,756,084.16
  5. Step 5: Solve for x
    x = 36,638,756,084.16/166,999.20
  6. Step 6: Final answer
    x = 219,394.80

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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.