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Finding the Fourth Proportional to 492,473.21, 738,709.72 and 118,496.21

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Solution

The fourth proportional to 492,473.21, 738,709.72 and 118,496.21 is: 177,744.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,473.21 : 738,709.72 = 118,496.21 : x
  2. Step 2: Convert to fraction form
    492,473.21/738,709.72 = 118,496.21/x
  3. Step 3: Cross multiply
    492,473.21x = 738,709.72 × 118,496.21
  4. Step 4: Simplify right side
    492,473.21x = 87,534,302,110.16
  5. Step 5: Solve for x
    x = 87,534,302,110.16/492,473.21
  6. Step 6: Final answer
    x = 177,744.29

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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.