Home / 351,945.53-527,912.80-85,705.60

Finding the Fourth Proportional to 351,945.53, 527,912.80 and 85,705.60

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Solution

The fourth proportional to 351,945.53, 527,912.80 and 85,705.60 is: 128,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,945.53 : 527,912.80 = 85,705.60 : x
  2. Step 2: Convert to fraction form
    351,945.53/527,912.80 = 85,705.60/x
  3. Step 3: Cross multiply
    351,945.53x = 527,912.80 × 85,705.60
  4. Step 4: Simplify right side
    351,945.53x = 45,245,083,271.68
  5. Step 5: Solve for x
    x = 45,245,083,271.68/351,945.53
  6. Step 6: Final answer
    x = 128,557.06

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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.