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Finding the Third Proportional to 162,915.75 and 252,256.50

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Solution

The third proportional to 162,915.75 and 252,256.50 is: 390,590.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,915.75 : 252,256.50 = 252,256.50 : x
  2. Step 2: Convert to fraction form
    162,915.75/252,256.50 = 252,256.50/x
  3. Step 3: Cross multiply
    162,915.75x = 252,256.50 × 252,256.50
  4. Step 4: Simplify right side
    162,915.75x = 63,633,341,792.25
  5. Step 5: Solve for x
    x = 63,633,341,792.25/162,915.75
  6. Step 6: Final answer
    x = 390,590.48

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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.