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Finding the Fourth Proportional to 350,744.40, 526,246.20 and 140,533.20

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Solution

The fourth proportional to 350,744.40, 526,246.20 and 140,533.20 is: 210,851.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,744.40 : 526,246.20 = 140,533.20 : x
  2. Step 2: Convert to fraction form
    350,744.40/526,246.20 = 140,533.20/x
  3. Step 3: Cross multiply
    350,744.40x = 526,246.20 × 140,533.20
  4. Step 4: Simplify right side
    350,744.40x = 73,955,062,473.84
  5. Step 5: Solve for x
    x = 73,955,062,473.84/350,744.40
  6. Step 6: Final answer
    x = 210,851.73

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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.