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Finding the Fourth Proportional to 104,486.16, 156,755.76 and 48,366.72

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Solution

The fourth proportional to 104,486.16, 156,755.76 and 48,366.72 is: 72,562.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,486.16 : 156,755.76 = 48,366.72 : x
  2. Step 2: Convert to fraction form
    104,486.16/156,755.76 = 48,366.72/x
  3. Step 3: Cross multiply
    104,486.16x = 156,755.76 × 48,366.72
  4. Step 4: Simplify right side
    104,486.16x = 7,581,761,952.31
  5. Step 5: Solve for x
    x = 7,581,761,952.31/104,486.16
  6. Step 6: Final answer
    x = 72,562.36

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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.