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Finding the Fourth Proportional to 492,269.65, 738,404.40 and 118,292.65

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Solution

The fourth proportional to 492,269.65, 738,404.40 and 118,292.65 is: 177,438.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,269.65 : 738,404.40 = 118,292.65 : x
  2. Step 2: Convert to fraction form
    492,269.65/738,404.40 = 118,292.65/x
  3. Step 3: Cross multiply
    492,269.65x = 738,404.40 × 118,292.65
  4. Step 4: Simplify right side
    492,269.65x = 87,347,815,998.77
  5. Step 5: Solve for x
    x = 87,347,815,998.77/492,269.65
  6. Step 6: Final answer
    x = 177,438.96

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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.