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Finding the Fourth Proportional to 68,130.76, 102,159.08 and 23,745.60

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Solution

The fourth proportional to 68,130.76, 102,159.08 and 23,745.60 is: 35,605.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,130.76 : 102,159.08 = 23,745.60 : x
  2. Step 2: Convert to fraction form
    68,130.76/102,159.08 = 23,745.60/x
  3. Step 3: Cross multiply
    68,130.76x = 102,159.08 × 23,745.60
  4. Step 4: Simplify right side
    68,130.76x = 2,425,828,650.05
  5. Step 5: Solve for x
    x = 2,425,828,650.05/68,130.76
  6. Step 6: Final answer
    x = 35,605.48

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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.