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Finding the Fourth Proportional to 156,950.92, 216,587.82 and 85,329.28

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Solution

The fourth proportional to 156,950.92, 216,587.82 and 85,329.28 is: 117,751.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,950.92 : 216,587.82 = 85,329.28 : x
  2. Step 2: Convert to fraction form
    156,950.92/216,587.82 = 85,329.28/x
  3. Step 3: Cross multiply
    156,950.92x = 216,587.82 × 85,329.28
  4. Step 4: Simplify right side
    156,950.92x = 18,481,282,737.37
  5. Step 5: Solve for x
    x = 18,481,282,737.37/156,950.92
  6. Step 6: Final answer
    x = 117,751.99

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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.