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Finding the Fourth Proportional to 169,046.56, 253,617.90 and 84,705.04

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Solution

The fourth proportional to 169,046.56, 253,617.90 and 84,705.04 is: 127,081.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,046.56 : 253,617.90 = 84,705.04 : x
  2. Step 2: Convert to fraction form
    169,046.56/253,617.90 = 84,705.04/x
  3. Step 3: Cross multiply
    169,046.56x = 253,617.90 × 84,705.04
  4. Step 4: Simplify right side
    169,046.56x = 21,482,714,364.22
  5. Step 5: Solve for x
    x = 21,482,714,364.22/169,046.56
  6. Step 6: Final answer
    x = 127,081.64

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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.