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Finding the Fourth Proportional to 347,806.20, 521,903.70 and 148,092.60

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Solution

The fourth proportional to 347,806.20, 521,903.70 and 148,092.60 is: 222,221.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,806.20 : 521,903.70 = 148,092.60 : x
  2. Step 2: Convert to fraction form
    347,806.20/521,903.70 = 148,092.60/x
  3. Step 3: Cross multiply
    347,806.20x = 521,903.70 × 148,092.60
  4. Step 4: Simplify right side
    347,806.20x = 77,290,075,882.62
  5. Step 5: Solve for x
    x = 77,290,075,882.62/347,806.20
  6. Step 6: Final answer
    x = 222,221.67

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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.