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Finding the Third Proportional to 74,078 and 117,677.50

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Solution

The third proportional to 74,078 and 117,677.50 is: 186,938.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,078 : 117,677.50 = 117,677.50 : x
  2. Step 2: Convert to fraction form
    74,078/117,677.50 = 117,677.50/x
  3. Step 3: Cross multiply
    74,078x = 117,677.50 × 117,677.50
  4. Step 4: Simplify right side
    74,078x = 13,847,994,006.25
  5. Step 5: Solve for x
    x = 13,847,994,006.25/74,078
  6. Step 6: Final answer
    x = 186,938.01

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.