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Finding the Fourth Proportional to 200,865.52, 301,290.99 and 60,620.50

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Solution

The fourth proportional to 200,865.52, 301,290.99 and 60,620.50 is: 90,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,865.52 : 301,290.99 = 60,620.50 : x
  2. Step 2: Convert to fraction form
    200,865.52/301,290.99 = 60,620.50/x
  3. Step 3: Cross multiply
    200,865.52x = 301,290.99 × 60,620.50
  4. Step 4: Simplify right side
    200,865.52x = 18,264,410,459.30
  5. Step 5: Solve for x
    x = 18,264,410,459.30/200,865.52
  6. Step 6: Final answer
    x = 90,928.55

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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.