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Finding the Third Proportional to 74,229 and 155,746.50

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Solution

The third proportional to 74,229 and 155,746.50 is: 326,785.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,229 : 155,746.50 = 155,746.50 : x
  2. Step 2: Convert to fraction form
    74,229/155,746.50 = 155,746.50/x
  3. Step 3: Cross multiply
    74,229x = 155,746.50 × 155,746.50
  4. Step 4: Simplify right side
    74,229x = 24,256,972,262.25
  5. Step 5: Solve for x
    x = 24,256,972,262.25/74,229
  6. Step 6: Final answer
    x = 326,785.65

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.