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Finding the Fourth Proportional to 231,339.60, 347,527.80 and 221,893.20

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Solution

The fourth proportional to 231,339.60, 347,527.80 and 221,893.20 is: 333,337.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,339.60 : 347,527.80 = 221,893.20 : x
  2. Step 2: Convert to fraction form
    231,339.60/347,527.80 = 221,893.20/x
  3. Step 3: Cross multiply
    231,339.60x = 347,527.80 × 221,893.20
  4. Step 4: Simplify right side
    231,339.60x = 77,114,055,630.96
  5. Step 5: Solve for x
    x = 77,114,055,630.96/231,339.60
  6. Step 6: Final answer
    x = 333,337.03

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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.