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Finding the Fourth Proportional to 250,705.44, 345,988.80 and 165,674.88

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Solution

The fourth proportional to 250,705.44, 345,988.80 and 165,674.88 is: 228,641.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,705.44 : 345,988.80 = 165,674.88 : x
  2. Step 2: Convert to fraction form
    250,705.44/345,988.80 = 165,674.88/x
  3. Step 3: Cross multiply
    250,705.44x = 345,988.80 × 165,674.88
  4. Step 4: Simplify right side
    250,705.44x = 57,321,652,921.34
  5. Step 5: Solve for x
    x = 57,321,652,921.34/250,705.44
  6. Step 6: Final answer
    x = 228,641.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.