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Finding the Third Proportional to 64,881 and 100,374.19

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Solution

The third proportional to 64,881 and 100,374.19 is: 155,283.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,881 : 100,374.19 = 100,374.19 : x
  2. Step 2: Convert to fraction form
    64,881/100,374.19 = 100,374.19/x
  3. Step 3: Cross multiply
    64,881x = 100,374.19 × 100,374.19
  4. Step 4: Simplify right side
    64,881x = 10,074,977,516.29
  5. Step 5: Solve for x
    x = 10,074,977,516.29/64,881
  6. Step 6: Final answer
    x = 155,283.94

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.