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Finding the Fourth Proportional to 104,383.80, 156,601.62 and 48,915

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Solution

The fourth proportional to 104,383.80, 156,601.62 and 48,915 is: 73,384.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,383.80 : 156,601.62 = 48,915 : x
  2. Step 2: Convert to fraction form
    104,383.80/156,601.62 = 48,915/x
  3. Step 3: Cross multiply
    104,383.80x = 156,601.62 × 48,915
  4. Step 4: Simplify right side
    104,383.80x = 7,660,168,242.30
  5. Step 5: Solve for x
    x = 7,660,168,242.30/104,383.80
  6. Step 6: Final answer
    x = 73,384.65

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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.