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Finding the Fourth Proportional to 240,118.30, 359,927.16 and 90,255.34

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Solution

The fourth proportional to 240,118.30, 359,927.16 and 90,255.34 is: 135,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,118.30 : 359,927.16 = 90,255.34 : x
  2. Step 2: Convert to fraction form
    240,118.30/359,927.16 = 90,255.34/x
  3. Step 3: Cross multiply
    240,118.30x = 359,927.16 × 90,255.34
  4. Step 4: Simplify right side
    240,118.30x = 32,485,348,201.03
  5. Step 5: Solve for x
    x = 32,485,348,201.03/240,118.30
  6. Step 6: Final answer
    x = 135,288.93

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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.