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Finding the Fourth Proportional to 169,679.20, 254,518.80 and 107,624.80

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Solution

The fourth proportional to 169,679.20, 254,518.80 and 107,624.80 is: 161,437.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,679.20 : 254,518.80 = 107,624.80 : x
  2. Step 2: Convert to fraction form
    169,679.20/254,518.80 = 107,624.80/x
  3. Step 3: Cross multiply
    169,679.20x = 254,518.80 × 107,624.80
  4. Step 4: Simplify right side
    169,679.20x = 27,392,534,946.24
  5. Step 5: Solve for x
    x = 27,392,534,946.24/169,679.20
  6. Step 6: Final answer
    x = 161,437.20

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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.