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Finding the Third Proportional to 124,720 and 272,768

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Solution

The third proportional to 124,720 and 272,768 is: 596,555.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,720 : 272,768 = 272,768 : x
  2. Step 2: Convert to fraction form
    124,720/272,768 = 272,768/x
  3. Step 3: Cross multiply
    124,720x = 272,768 × 272,768
  4. Step 4: Simplify right side
    124,720x = 74,402,381,824
  5. Step 5: Solve for x
    x = 74,402,381,824/124,720
  6. Step 6: Final answer
    x = 596,555.34

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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.