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Finding the Third Proportional to 74,190.63 and 157,209.50

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Solution

The third proportional to 74,190.63 and 157,209.50 is: 333,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,190.63 : 157,209.50 = 157,209.50 : x
  2. Step 2: Convert to fraction form
    74,190.63/157,209.50 = 157,209.50/x
  3. Step 3: Cross multiply
    74,190.63x = 157,209.50 × 157,209.50
  4. Step 4: Simplify right side
    74,190.63x = 24,714,826,890.25
  5. Step 5: Solve for x
    x = 24,714,826,890.25/74,190.63
  6. Step 6: Final answer
    x = 333,126.01

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.