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Finding the Fourth Proportional to 262,459.01, 393,750.89 and 84,965.94

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Solution

The fourth proportional to 262,459.01, 393,750.89 and 84,965.94 is: 127,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,459.01 : 393,750.89 = 84,965.94 : x
  2. Step 2: Convert to fraction form
    262,459.01/393,750.89 = 84,965.94/x
  3. Step 3: Cross multiply
    262,459.01x = 393,750.89 × 84,965.94
  4. Step 4: Simplify right side
    262,459.01x = 33,455,414,494.69
  5. Step 5: Solve for x
    x = 33,455,414,494.69/262,459.01
  6. Step 6: Final answer
    x = 127,469.10

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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.