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Finding the Fourth Proportional to 104,446.80, 156,612.60 and 42,046.80

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Solution

The fourth proportional to 104,446.80, 156,612.60 and 42,046.80 is: 63,047.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,446.80 : 156,612.60 = 42,046.80 : x
  2. Step 2: Convert to fraction form
    104,446.80/156,612.60 = 42,046.80/x
  3. Step 3: Cross multiply
    104,446.80x = 156,612.60 × 42,046.80
  4. Step 4: Simplify right side
    104,446.80x = 6,585,058,669.68
  5. Step 5: Solve for x
    x = 6,585,058,669.68/104,446.80
  6. Step 6: Final answer
    x = 63,047.01

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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.