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Finding the Fourth Proportional to 350,442.90, 525,793.95 and 140,231.70

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Solution

The fourth proportional to 350,442.90, 525,793.95 and 140,231.70 is: 210,399.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,442.90 : 525,793.95 = 140,231.70 : x
  2. Step 2: Convert to fraction form
    350,442.90/525,793.95 = 140,231.70/x
  3. Step 3: Cross multiply
    350,442.90x = 525,793.95 × 140,231.70
  4. Step 4: Simplify right side
    350,442.90x = 73,732,979,458.22
  5. Step 5: Solve for x
    x = 73,732,979,458.22/350,442.90
  6. Step 6: Final answer
    x = 210,399.41

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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.