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Finding the Fourth Proportional to 156,950.16, 216,593.04 and 85,328.64

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Solution

The fourth proportional to 156,950.16, 216,593.04 and 85,328.64 is: 117,754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,950.16 : 216,593.04 = 85,328.64 : x
  2. Step 2: Convert to fraction form
    156,950.16/216,593.04 = 85,328.64/x
  3. Step 3: Cross multiply
    156,950.16x = 216,593.04 × 85,328.64
  4. Step 4: Simplify right side
    156,950.16x = 18,481,589,536.67
  5. Step 5: Solve for x
    x = 18,481,589,536.67/156,950.16
  6. Step 6: Final answer
    x = 117,754.51

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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.