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Finding the Fourth Proportional to 240,647.20, 360,871.36 and 90,862.08

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Solution

The fourth proportional to 240,647.20, 360,871.36 and 90,862.08 is: 136,255.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,647.20 : 360,871.36 = 90,862.08 : x
  2. Step 2: Convert to fraction form
    240,647.20/360,871.36 = 90,862.08/x
  3. Step 3: Cross multiply
    240,647.20x = 360,871.36 × 90,862.08
  4. Step 4: Simplify right side
    240,647.20x = 32,789,522,382.03
  5. Step 5: Solve for x
    x = 32,789,522,382.03/240,647.20
  6. Step 6: Final answer
    x = 136,255.57

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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.