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Finding the Fourth Proportional to 296,129.20, 443,902.20 and 146,392.60

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Solution

The fourth proportional to 296,129.20, 443,902.20 and 146,392.60 is: 219,444.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,129.20 : 443,902.20 = 146,392.60 : x
  2. Step 2: Convert to fraction form
    296,129.20/443,902.20 = 146,392.60/x
  3. Step 3: Cross multiply
    296,129.20x = 443,902.20 × 146,392.60
  4. Step 4: Simplify right side
    296,129.20x = 64,983,997,203.72
  5. Step 5: Solve for x
    x = 64,983,997,203.72/296,129.20
  6. Step 6: Final answer
    x = 219,444.75

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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.