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Finding the Fourth Proportional to 169,984.60, 254,976.90 and 168,947.80

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Solution

The fourth proportional to 169,984.60, 254,976.90 and 168,947.80 is: 253,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,984.60 : 254,976.90 = 168,947.80 : x
  2. Step 2: Convert to fraction form
    169,984.60/254,976.90 = 168,947.80/x
  3. Step 3: Cross multiply
    169,984.60x = 254,976.90 × 168,947.80
  4. Step 4: Simplify right side
    169,984.60x = 43,077,786,305.82
  5. Step 5: Solve for x
    x = 43,077,786,305.82/169,984.60
  6. Step 6: Final answer
    x = 253,421.70

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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.