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Finding the Fourth Proportional to 156,501.63, 215,977.13 and 88,517.27

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Solution

The fourth proportional to 156,501.63, 215,977.13 and 88,517.27 is: 122,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,501.63 : 215,977.13 = 88,517.27 : x
  2. Step 2: Convert to fraction form
    156,501.63/215,977.13 = 88,517.27/x
  3. Step 3: Cross multiply
    156,501.63x = 215,977.13 × 88,517.27
  4. Step 4: Simplify right side
    156,501.63x = 19,117,706,401.66
  5. Step 5: Solve for x
    x = 19,117,706,401.66/156,501.63
  6. Step 6: Final answer
    x = 122,156.60

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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.