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Finding the Fourth Proportional to 339,931.20, 510,091.20 and 234,825.60

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Solution

The fourth proportional to 339,931.20, 510,091.20 and 234,825.60 is: 352,372.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,931.20 : 510,091.20 = 234,825.60 : x
  2. Step 2: Convert to fraction form
    339,931.20/510,091.20 = 234,825.60/x
  3. Step 3: Cross multiply
    339,931.20x = 510,091.20 × 234,825.60
  4. Step 4: Simplify right side
    339,931.20x = 119,782,472,094.72
  5. Step 5: Solve for x
    x = 119,782,472,094.72/339,931.20
  6. Step 6: Final answer
    x = 352,372.69

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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.