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Finding the Fourth Proportional to 474,276.41, 711,362.21 and 119,290.57

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Solution

The fourth proportional to 474,276.41, 711,362.21 and 119,290.57 is: 178,922.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,276.41 : 711,362.21 = 119,290.57 : x
  2. Step 2: Convert to fraction form
    474,276.41/711,362.21 = 119,290.57/x
  3. Step 3: Cross multiply
    474,276.41x = 711,362.21 × 119,290.57
  4. Step 4: Simplify right side
    474,276.41x = 84,858,799,950.55
  5. Step 5: Solve for x
    x = 84,858,799,950.55/474,276.41
  6. Step 6: Final answer
    x = 178,922.67

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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.