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Finding the Fourth Proportional to 112,889.96, 169,002.75 and 75,356.94

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Solution

The fourth proportional to 112,889.96, 169,002.75 and 75,356.94 is: 112,813.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,889.96 : 169,002.75 = 75,356.94 : x
  2. Step 2: Convert to fraction form
    112,889.96/169,002.75 = 75,356.94/x
  3. Step 3: Cross multiply
    112,889.96x = 169,002.75 × 75,356.94
  4. Step 4: Simplify right side
    112,889.96x = 12,735,530,091.59
  5. Step 5: Solve for x
    x = 12,735,530,091.59/112,889.96
  6. Step 6: Final answer
    x = 112,813.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.