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Finding the Third Proportional to 74,152 and 153,484

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Solution

The third proportional to 74,152 and 153,484 is: 317,689.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,152 : 153,484 = 153,484 : x
  2. Step 2: Convert to fraction form
    74,152/153,484 = 153,484/x
  3. Step 3: Cross multiply
    74,152x = 153,484 × 153,484
  4. Step 4: Simplify right side
    74,152x = 23,557,338,256
  5. Step 5: Solve for x
    x = 23,557,338,256/74,152
  6. Step 6: Final answer
    x = 317,689.86

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.