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Finding the Third Proportional to 74,988.75 and 105,466.50

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Solution

The third proportional to 74,988.75 and 105,466.50 is: 148,331.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,988.75 : 105,466.50 = 105,466.50 : x
  2. Step 2: Convert to fraction form
    74,988.75/105,466.50 = 105,466.50/x
  3. Step 3: Cross multiply
    74,988.75x = 105,466.50 × 105,466.50
  4. Step 4: Simplify right side
    74,988.75x = 11,123,182,622.25
  5. Step 5: Solve for x
    x = 11,123,182,622.25/74,988.75
  6. Step 6: Final answer
    x = 148,331.35

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.