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Finding the Fourth Proportional to 315,241.55, 435,098.09 and 192,754.87

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Solution

The fourth proportional to 315,241.55, 435,098.09 and 192,754.87 is: 266,041.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,241.55 : 435,098.09 = 192,754.87 : x
  2. Step 2: Convert to fraction form
    315,241.55/435,098.09 = 192,754.87/x
  3. Step 3: Cross multiply
    315,241.55x = 435,098.09 × 192,754.87
  4. Step 4: Simplify right side
    315,241.55x = 83,867,275,775.20
  5. Step 5: Solve for x
    x = 83,867,275,775.20/315,241.55
  6. Step 6: Final answer
    x = 266,041.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.