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Finding the Fourth Proportional to 273,390.05, 410,087.50 and 83,851.30

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Solution

The fourth proportional to 273,390.05, 410,087.50 and 83,851.30 is: 125,777.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,390.05 : 410,087.50 = 83,851.30 : x
  2. Step 2: Convert to fraction form
    273,390.05/410,087.50 = 83,851.30/x
  3. Step 3: Cross multiply
    273,390.05x = 410,087.50 × 83,851.30
  4. Step 4: Simplify right side
    273,390.05x = 34,386,367,519.06
  5. Step 5: Solve for x
    x = 34,386,367,519.06/273,390.05
  6. Step 6: Final answer
    x = 125,777.69

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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.