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Finding the Fourth Proportional to 225,307.94, 337,840.68 and 90,304.26

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Solution

The fourth proportional to 225,307.94, 337,840.68 and 90,304.26 is: 135,407.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,307.94 : 337,840.68 = 90,304.26 : x
  2. Step 2: Convert to fraction form
    225,307.94/337,840.68 = 90,304.26/x
  3. Step 3: Cross multiply
    225,307.94x = 337,840.68 × 90,304.26
  4. Step 4: Simplify right side
    225,307.94x = 30,508,452,255.02
  5. Step 5: Solve for x
    x = 30,508,452,255.02/225,307.94
  6. Step 6: Final answer
    x = 135,407.80

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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.