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Finding the Fourth Proportional to 348,759.66, 523,172.55 and 135,544.01

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Solution

The fourth proportional to 348,759.66, 523,172.55 and 135,544.01 is: 203,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,759.66 : 523,172.55 = 135,544.01 : x
  2. Step 2: Convert to fraction form
    348,759.66/523,172.55 = 135,544.01/x
  3. Step 3: Cross multiply
    348,759.66x = 523,172.55 × 135,544.01
  4. Step 4: Simplify right side
    348,759.66x = 70,912,902,733.06
  5. Step 5: Solve for x
    x = 70,912,902,733.06/348,759.66
  6. Step 6: Final answer
    x = 203,328.86

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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.