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Finding the Third Proportional to 163,039.50 and 238,720.50

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Solution

The third proportional to 163,039.50 and 238,720.50 is: 349,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,039.50 : 238,720.50 = 238,720.50 : x
  2. Step 2: Convert to fraction form
    163,039.50/238,720.50 = 238,720.50/x
  3. Step 3: Cross multiply
    163,039.50x = 238,720.50 × 238,720.50
  4. Step 4: Simplify right side
    163,039.50x = 56,987,477,120.25
  5. Step 5: Solve for x
    x = 56,987,477,120.25/163,039.50
  6. Step 6: Final answer
    x = 349,531.72

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.