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Finding the Fourth Proportional to 175,755.40, 263,018.70 and 161,009.80

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Solution

The fourth proportional to 175,755.40, 263,018.70 and 161,009.80 is: 240,951.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,755.40 : 263,018.70 = 161,009.80 : x
  2. Step 2: Convert to fraction form
    175,755.40/263,018.70 = 161,009.80/x
  3. Step 3: Cross multiply
    175,755.40x = 263,018.70 × 161,009.80
  4. Step 4: Simplify right side
    175,755.40x = 42,348,588,283.26
  5. Step 5: Solve for x
    x = 42,348,588,283.26/175,755.40
  6. Step 6: Final answer
    x = 240,951.85

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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.