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Finding the Fourth Proportional to 104,572.73, 156,730.61 and 48,336.76

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Solution

The fourth proportional to 104,572.73, 156,730.61 and 48,336.76 is: 72,445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,572.73 : 156,730.61 = 48,336.76 : x
  2. Step 2: Convert to fraction form
    104,572.73/156,730.61 = 48,336.76/x
  3. Step 3: Cross multiply
    104,572.73x = 156,730.61 × 48,336.76
  4. Step 4: Simplify right side
    104,572.73x = 7,575,850,196.98
  5. Step 5: Solve for x
    x = 7,575,850,196.98/104,572.73
  6. Step 6: Final answer
    x = 72,445.75

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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.