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Finding the Fourth Proportional to 140,587.56, 210,745.88 and 51,792.56

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Solution

The fourth proportional to 140,587.56, 210,745.88 and 51,792.56 is: 77,638.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,587.56 : 210,745.88 = 51,792.56 : x
  2. Step 2: Convert to fraction form
    140,587.56/210,745.88 = 51,792.56/x
  3. Step 3: Cross multiply
    140,587.56x = 210,745.88 × 51,792.56
  4. Step 4: Simplify right side
    140,587.56x = 10,915,068,634.65
  5. Step 5: Solve for x
    x = 10,915,068,634.65/140,587.56
  6. Step 6: Final answer
    x = 77,638.94

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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.