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Finding the Fourth Proportional to 92,395.78, 138,485.01 and 41,735.68

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Solution

The fourth proportional to 92,395.78, 138,485.01 and 41,735.68 is: 62,554.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,395.78 : 138,485.01 = 41,735.68 : x
  2. Step 2: Convert to fraction form
    92,395.78/138,485.01 = 41,735.68/x
  3. Step 3: Cross multiply
    92,395.78x = 138,485.01 × 41,735.68
  4. Step 4: Simplify right side
    92,395.78x = 5,779,765,715.94
  5. Step 5: Solve for x
    x = 5,779,765,715.94/92,395.78
  6. Step 6: Final answer
    x = 62,554.44

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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.