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Finding the Third Proportional to 163,722.50 and 357,881

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Solution

The third proportional to 163,722.50 and 357,881 is: 782,292.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,722.50 : 357,881 = 357,881 : x
  2. Step 2: Convert to fraction form
    163,722.50/357,881 = 357,881/x
  3. Step 3: Cross multiply
    163,722.50x = 357,881 × 357,881
  4. Step 4: Simplify right side
    163,722.50x = 128,078,810,161
  5. Step 5: Solve for x
    x = 128,078,810,161/163,722.50
  6. Step 6: Final answer
    x = 782,292.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.