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Finding the Fourth Proportional to 85,273.48, 127,855.53 and 35,388.01

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Solution

The fourth proportional to 85,273.48, 127,855.53 and 35,388.01 is: 53,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,273.48 : 127,855.53 = 35,388.01 : x
  2. Step 2: Convert to fraction form
    85,273.48/127,855.53 = 35,388.01/x
  3. Step 3: Cross multiply
    85,273.48x = 127,855.53 × 35,388.01
  4. Step 4: Simplify right side
    85,273.48x = 4,524,552,774.20
  5. Step 5: Solve for x
    x = 4,524,552,774.20/85,273.48
  6. Step 6: Final answer
    x = 53,059.32

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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.