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Finding the Fourth Proportional to 74,456.70, 104,006.10 and 74,456.70

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Solution

The fourth proportional to 74,456.70, 104,006.10 and 74,456.70 is: 104,006.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,456.70 : 104,006.10 = 74,456.70 : x
  2. Step 2: Convert to fraction form
    74,456.70/104,006.10 = 74,456.70/x
  3. Step 3: Cross multiply
    74,456.70x = 104,006.10 × 74,456.70
  4. Step 4: Simplify right side
    74,456.70x = 7,743,950,985.87
  5. Step 5: Solve for x
    x = 7,743,950,985.87/74,456.70
  6. Step 6: Final answer
    x = 104,006.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.