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Finding the Fourth Proportional to 332,389.40, 498,486.90 and 119,132.60

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Solution

The fourth proportional to 332,389.40, 498,486.90 and 119,132.60 is: 178,664.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,389.40 : 498,486.90 = 119,132.60 : x
  2. Step 2: Convert to fraction form
    332,389.40/498,486.90 = 119,132.60/x
  3. Step 3: Cross multiply
    332,389.40x = 498,486.90 × 119,132.60
  4. Step 4: Simplify right side
    332,389.40x = 59,386,040,462.94
  5. Step 5: Solve for x
    x = 59,386,040,462.94/332,389.40
  6. Step 6: Final answer
    x = 178,664.06

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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.