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Finding the Fourth Proportional to 492,556.80, 738,835.20 and 118,579.80

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Solution

The fourth proportional to 492,556.80, 738,835.20 and 118,579.80 is: 177,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,556.80 : 738,835.20 = 118,579.80 : x
  2. Step 2: Convert to fraction form
    492,556.80/738,835.20 = 118,579.80/x
  3. Step 3: Cross multiply
    492,556.80x = 738,835.20 × 118,579.80
  4. Step 4: Simplify right side
    492,556.80x = 87,610,930,248.96
  5. Step 5: Solve for x
    x = 87,610,930,248.96/492,556.80
  6. Step 6: Final answer
    x = 177,869.70

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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.