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Finding the Fourth Proportional to 371,657.62, 557,453.62 and 135,002.36

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Solution

The fourth proportional to 371,657.62, 557,453.62 and 135,002.36 is: 202,491.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,657.62 : 557,453.62 = 135,002.36 : x
  2. Step 2: Convert to fraction form
    371,657.62/557,453.62 = 135,002.36/x
  3. Step 3: Cross multiply
    371,657.62x = 557,453.62 × 135,002.36
  4. Step 4: Simplify right side
    371,657.62x = 75,257,554,290.54
  5. Step 5: Solve for x
    x = 75,257,554,290.54/371,657.62
  6. Step 6: Final answer
    x = 202,491.62

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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.