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Finding the Fourth Proportional to 492,616.32, 738,924.50 and 118,639.32

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Solution

The fourth proportional to 492,616.32, 738,924.50 and 118,639.32 is: 177,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,616.32 : 738,924.50 = 118,639.32 : x
  2. Step 2: Convert to fraction form
    492,616.32/738,924.50 = 118,639.32/x
  3. Step 3: Cross multiply
    492,616.32x = 738,924.50 × 118,639.32
  4. Step 4: Simplify right side
    492,616.32x = 87,665,500,211.34
  5. Step 5: Solve for x
    x = 87,665,500,211.34/492,616.32
  6. Step 6: Final answer
    x = 177,958.98

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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.