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Finding the Fourth Proportional to 84,708.37, 127,103.46 and 59,907.79

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Solution

The fourth proportional to 84,708.37, 127,103.46 and 59,907.79 is: 89,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,708.37 : 127,103.46 = 59,907.79 : x
  2. Step 2: Convert to fraction form
    84,708.37/127,103.46 = 59,907.79/x
  3. Step 3: Cross multiply
    84,708.37x = 127,103.46 × 59,907.79
  4. Step 4: Simplify right side
    84,708.37x = 7,614,487,389.95
  5. Step 5: Solve for x
    x = 7,614,487,389.95/84,708.37
  6. Step 6: Final answer
    x = 89,890.61

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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.