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Finding the Fourth Proportional to 350,522.20, 525,815.70 and 140,116.60

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Solution

The fourth proportional to 350,522.20, 525,815.70 and 140,116.60 is: 210,187.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,522.20 : 525,815.70 = 140,116.60 : x
  2. Step 2: Convert to fraction form
    350,522.20/525,815.70 = 140,116.60/x
  3. Step 3: Cross multiply
    350,522.20x = 525,815.70 × 140,116.60
  4. Step 4: Simplify right side
    350,522.20x = 73,675,508,110.62
  5. Step 5: Solve for x
    x = 73,675,508,110.62/350,522.20
  6. Step 6: Final answer
    x = 210,187.85

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1.5x scale

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.