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Finding the Fourth Proportional to 156,633.68, 216,165.16 and 88,650.72

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Solution

The fourth proportional to 156,633.68, 216,165.16 and 88,650.72 is: 122,344.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,633.68 : 216,165.16 = 88,650.72 : x
  2. Step 2: Convert to fraction form
    156,633.68/216,165.16 = 88,650.72/x
  3. Step 3: Cross multiply
    156,633.68x = 216,165.16 × 88,650.72
  4. Step 4: Simplify right side
    156,633.68x = 19,163,197,072.92
  5. Step 5: Solve for x
    x = 19,163,197,072.92/156,633.68
  6. Step 6: Final answer
    x = 122,344.04

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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.