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Finding the Fourth Proportional to 84,835.67, 127,059.71 and 40,493.63

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Solution

The fourth proportional to 84,835.67, 127,059.71 and 40,493.63 is: 60,647.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,835.67 : 127,059.71 = 40,493.63 : x
  2. Step 2: Convert to fraction form
    84,835.67/127,059.71 = 40,493.63/x
  3. Step 3: Cross multiply
    84,835.67x = 127,059.71 × 40,493.63
  4. Step 4: Simplify right side
    84,835.67x = 5,145,108,999.83
  5. Step 5: Solve for x
    x = 5,145,108,999.83/84,835.67
  6. Step 6: Final answer
    x = 60,647.95

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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.