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Finding the Third Proportional to 118,558.50 and 210,801.50

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Solution

The third proportional to 118,558.50 and 210,801.50 is: 374,813.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,558.50 : 210,801.50 = 210,801.50 : x
  2. Step 2: Convert to fraction form
    118,558.50/210,801.50 = 210,801.50/x
  3. Step 3: Cross multiply
    118,558.50x = 210,801.50 × 210,801.50
  4. Step 4: Simplify right side
    118,558.50x = 44,437,272,402.25
  5. Step 5: Solve for x
    x = 44,437,272,402.25/118,558.50
  6. Step 6: Final answer
    x = 374,813.05

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.