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Finding the Fourth Proportional to 104,608, 156,946.56 and 42,244.48

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Solution

The fourth proportional to 104,608, 156,946.56 and 42,244.48 is: 63,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,608 : 156,946.56 = 42,244.48 : x
  2. Step 2: Convert to fraction form
    104,608/156,946.56 = 42,244.48/x
  3. Step 3: Cross multiply
    104,608x = 156,946.56 × 42,244.48
  4. Step 4: Simplify right side
    104,608x = 6,630,125,814.99
  5. Step 5: Solve for x
    x = 6,630,125,814.99/104,608
  6. Step 6: Final answer
    x = 63,380.68

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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.