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Finding the Fourth Proportional to 268,692.40, 402,455.40 and 222,036.40

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Solution

The fourth proportional to 268,692.40, 402,455.40 and 222,036.40 is: 332,572.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,692.40 : 402,455.40 = 222,036.40 : x
  2. Step 2: Convert to fraction form
    268,692.40/402,455.40 = 222,036.40/x
  3. Step 3: Cross multiply
    268,692.40x = 402,455.40 × 222,036.40
  4. Step 4: Simplify right side
    268,692.40x = 89,359,748,176.56
  5. Step 5: Solve for x
    x = 89,359,748,176.56/268,692.40
  6. Step 6: Final answer
    x = 332,572.67

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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.