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Finding the Fourth Proportional to 156,950.77, 216,578.12 and 87,101.83

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Solution

The fourth proportional to 156,950.77, 216,578.12 and 87,101.83 is: 120,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,950.77 : 216,578.12 = 87,101.83 : x
  2. Step 2: Convert to fraction form
    156,950.77/216,578.12 = 87,101.83/x
  3. Step 3: Cross multiply
    156,950.77x = 216,578.12 × 87,101.83
  4. Step 4: Simplify right side
    156,950.77x = 18,864,350,589.96
  5. Step 5: Solve for x
    x = 18,864,350,589.96/156,950.77
  6. Step 6: Final answer
    x = 120,192.79

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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.