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Finding the Third Proportional to 141,528 and 307,608

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Solution

The third proportional to 141,528 and 307,608 is: 668,579.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,528 : 307,608 = 307,608 : x
  2. Step 2: Convert to fraction form
    141,528/307,608 = 307,608/x
  3. Step 3: Cross multiply
    141,528x = 307,608 × 307,608
  4. Step 4: Simplify right side
    141,528x = 94,622,681,664
  5. Step 5: Solve for x
    x = 94,622,681,664/141,528
  6. Step 6: Final answer
    x = 668,579.23

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.