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Finding the Fourth Proportional to 350,998.76, 526,563.76 and 140,653.10

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Solution

The fourth proportional to 350,998.76, 526,563.76 and 140,653.10 is: 211,005.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,998.76 : 526,563.76 = 140,653.10 : x
  2. Step 2: Convert to fraction form
    350,998.76/526,563.76 = 140,653.10/x
  3. Step 3: Cross multiply
    350,998.76x = 526,563.76 × 140,653.10
  4. Step 4: Simplify right side
    350,998.76x = 74,062,825,191.66
  5. Step 5: Solve for x
    x = 74,062,825,191.66/350,998.76
  6. Step 6: Final answer
    x = 211,005.95

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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.