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Finding the Fourth Proportional to 228,108.40, 341,514.60 and 215,695.60

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Solution

The fourth proportional to 228,108.40, 341,514.60 and 215,695.60 is: 322,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,108.40 : 341,514.60 = 215,695.60 : x
  2. Step 2: Convert to fraction form
    228,108.40/341,514.60 = 215,695.60/x
  3. Step 3: Cross multiply
    228,108.40x = 341,514.60 × 215,695.60
  4. Step 4: Simplify right side
    228,108.40x = 73,663,196,555.76
  5. Step 5: Solve for x
    x = 73,663,196,555.76/228,108.40
  6. Step 6: Final answer
    x = 322,930.66

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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.