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Finding the Third Proportional to 101,858.50 and 157,440

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Solution

The third proportional to 101,858.50 and 157,440 is: 243,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,858.50 : 157,440 = 157,440 : x
  2. Step 2: Convert to fraction form
    101,858.50/157,440 = 157,440/x
  3. Step 3: Cross multiply
    101,858.50x = 157,440 × 157,440
  4. Step 4: Simplify right side
    101,858.50x = 24,787,353,600
  5. Step 5: Solve for x
    x = 24,787,353,600/101,858.50
  6. Step 6: Final answer
    x = 243,350.86

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.