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Finding the Fourth Proportional to 104,383.72, 156,601.50 and 30,511.72

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Solution

The fourth proportional to 104,383.72, 156,601.50 and 30,511.72 is: 45,775.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,383.72 : 156,601.50 = 30,511.72 : x
  2. Step 2: Convert to fraction form
    104,383.72/156,601.50 = 30,511.72/x
  3. Step 3: Cross multiply
    104,383.72x = 156,601.50 × 30,511.72
  4. Step 4: Simplify right side
    104,383.72x = 4,778,181,119.58
  5. Step 5: Solve for x
    x = 4,778,181,119.58/104,383.72
  6. Step 6: Final answer
    x = 45,775.16

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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.