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Finding the Fourth Proportional to 61,371.72, 84,325.95 and 48,774.60

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Solution

The fourth proportional to 61,371.72, 84,325.95 and 48,774.60 is: 67,017.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,371.72 : 84,325.95 = 48,774.60 : x
  2. Step 2: Convert to fraction form
    61,371.72/84,325.95 = 48,774.60/x
  3. Step 3: Cross multiply
    61,371.72x = 84,325.95 × 48,774.60
  4. Step 4: Simplify right side
    61,371.72x = 4,112,964,480.87
  5. Step 5: Solve for x
    x = 4,112,964,480.87/61,371.72
  6. Step 6: Final answer
    x = 67,017.26

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.