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Finding the Fourth Proportional to 156,889.27, 216,480.40 and 88,892.20

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Solution

The fourth proportional to 156,889.27, 216,480.40 and 88,892.20 is: 122,656.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,889.27 : 216,480.40 = 88,892.20 : x
  2. Step 2: Convert to fraction form
    156,889.27/216,480.40 = 88,892.20/x
  3. Step 3: Cross multiply
    156,889.27x = 216,480.40 × 88,892.20
  4. Step 4: Simplify right side
    156,889.27x = 19,243,419,012.88
  5. Step 5: Solve for x
    x = 19,243,419,012.88/156,889.27
  6. Step 6: Final answer
    x = 122,656.06

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1.5x scale

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.