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Finding the Fourth Proportional to 492,456.96, 738,685.40 and 118,479.96

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Solution

The fourth proportional to 492,456.96, 738,685.40 and 118,479.96 is: 177,719.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,456.96 : 738,685.40 = 118,479.96 : x
  2. Step 2: Convert to fraction form
    492,456.96/738,685.40 = 118,479.96/x
  3. Step 3: Cross multiply
    492,456.96x = 738,685.40 × 118,479.96
  4. Step 4: Simplify right side
    492,456.96x = 87,519,416,052.18
  5. Step 5: Solve for x
    x = 87,519,416,052.18/492,456.96
  6. Step 6: Final answer
    x = 177,719.93

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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.