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Finding the Fourth Proportional to 152,893.59, 211,000.17 and 84,910.88

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Solution

The fourth proportional to 152,893.59, 211,000.17 and 84,910.88 is: 117,180.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,893.59 : 211,000.17 = 84,910.88 : x
  2. Step 2: Convert to fraction form
    152,893.59/211,000.17 = 84,910.88/x
  3. Step 3: Cross multiply
    152,893.59x = 211,000.17 × 84,910.88
  4. Step 4: Simplify right side
    152,893.59x = 17,916,209,059.85
  5. Step 5: Solve for x
    x = 17,916,209,059.85/152,893.59
  6. Step 6: Final answer
    x = 117,180.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.