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Finding the Fourth Proportional to 169,429.20, 254,143.80 and 166,804.80

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Solution

The fourth proportional to 169,429.20, 254,143.80 and 166,804.80 is: 250,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,429.20 : 254,143.80 = 166,804.80 : x
  2. Step 2: Convert to fraction form
    169,429.20/254,143.80 = 166,804.80/x
  3. Step 3: Cross multiply
    169,429.20x = 254,143.80 × 166,804.80
  4. Step 4: Simplify right side
    169,429.20x = 42,392,405,730.24
  5. Step 5: Solve for x
    x = 42,392,405,730.24/169,429.20
  6. Step 6: Final answer
    x = 250,207.20

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1.5x scale

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.