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Finding the Fourth Proportional to 231,889.60, 348,256.80 and 202,859.20

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Solution

The fourth proportional to 231,889.60, 348,256.80 and 202,859.20 is: 304,658.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,889.60 : 348,256.80 = 202,859.20 : x
  2. Step 2: Convert to fraction form
    231,889.60/348,256.80 = 202,859.20/x
  3. Step 3: Cross multiply
    231,889.60x = 348,256.80 × 202,859.20
  4. Step 4: Simplify right side
    231,889.60x = 70,647,095,842.56
  5. Step 5: Solve for x
    x = 70,647,095,842.56/231,889.60
  6. Step 6: Final answer
    x = 304,658.32

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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.