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Finding the Fourth Proportional to 156,959.64, 216,611.70 and 88,977.93

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Solution

The fourth proportional to 156,959.64, 216,611.70 and 88,977.93 is: 122,793.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959.64 : 216,611.70 = 88,977.93 : x
  2. Step 2: Convert to fraction form
    156,959.64/216,611.70 = 88,977.93/x
  3. Step 3: Cross multiply
    156,959.64x = 216,611.70 × 88,977.93
  4. Step 4: Simplify right side
    156,959.64x = 19,273,660,679.78
  5. Step 5: Solve for x
    x = 19,273,660,679.78/156,959.64
  6. Step 6: Final answer
    x = 122,793.74

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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.