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Finding the Fourth Proportional to 215,671.29, 323,491.26 and 73,504.77

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Solution

The fourth proportional to 215,671.29, 323,491.26 and 73,504.77 is: 110,251.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,671.29 : 323,491.26 = 73,504.77 : x
  2. Step 2: Convert to fraction form
    215,671.29/323,491.26 = 73,504.77/x
  3. Step 3: Cross multiply
    215,671.29x = 323,491.26 × 73,504.77
  4. Step 4: Simplify right side
    215,671.29x = 23,778,150,663.31
  5. Step 5: Solve for x
    x = 23,778,150,663.31/215,671.29
  6. Step 6: Final answer
    x = 110,251.81

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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.