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Finding the Fourth Proportional to 160,657.74, 240,755.75 and 90,388.62

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Solution

The fourth proportional to 160,657.74, 240,755.75 and 90,388.62 is: 135,453.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,657.74 : 240,755.75 = 90,388.62 : x
  2. Step 2: Convert to fraction form
    160,657.74/240,755.75 = 90,388.62/x
  3. Step 3: Cross multiply
    160,657.74x = 240,755.75 × 90,388.62
  4. Step 4: Simplify right side
    160,657.74x = 21,761,579,999.57
  5. Step 5: Solve for x
    x = 21,761,579,999.57/160,657.74
  6. Step 6: Final answer
    x = 135,453.04

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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.