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Finding the Third Proportional to 171,643.50 and 358,971

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Solution

The third proportional to 171,643.50 and 358,971 is: 750,743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,643.50 : 358,971 = 358,971 : x
  2. Step 2: Convert to fraction form
    171,643.50/358,971 = 358,971/x
  3. Step 3: Cross multiply
    171,643.50x = 358,971 × 358,971
  4. Step 4: Simplify right side
    171,643.50x = 128,860,178,841
  5. Step 5: Solve for x
    x = 128,860,178,841/171,643.50
  6. Step 6: Final answer
    x = 750,743.13

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.