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Finding the Fourth Proportional to 68,141.40, 102,017.70 and 41,897.40

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Solution

The fourth proportional to 68,141.40, 102,017.70 and 41,897.40 is: 62,726.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,141.40 : 102,017.70 = 41,897.40 : x
  2. Step 2: Convert to fraction form
    68,141.40/102,017.70 = 41,897.40/x
  3. Step 3: Cross multiply
    68,141.40x = 102,017.70 × 41,897.40
  4. Step 4: Simplify right side
    68,141.40x = 4,274,276,383.98
  5. Step 5: Solve for x
    x = 4,274,276,383.98/68,141.40
  6. Step 6: Final answer
    x = 62,726.57

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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.