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Finding the Fourth Proportional to 580,782.61, 871,172.09 and 154,361.35

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Solution

The fourth proportional to 580,782.61, 871,172.09 and 154,361.35 is: 231,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,782.61 : 871,172.09 = 154,361.35 : x
  2. Step 2: Convert to fraction form
    580,782.61/871,172.09 = 154,361.35/x
  3. Step 3: Cross multiply
    580,782.61x = 871,172.09 × 154,361.35
  4. Step 4: Simplify right side
    580,782.61x = 134,475,295,456.25
  5. Step 5: Solve for x
    x = 134,475,295,456.25/580,782.61
  6. Step 6: Final answer
    x = 231,541.53

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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.