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Finding the Third Proportional to 53,218.50 and 79,366.50

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Solution

The third proportional to 53,218.50 and 79,366.50 is: 118,361.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,218.50 : 79,366.50 = 79,366.50 : x
  2. Step 2: Convert to fraction form
    53,218.50/79,366.50 = 79,366.50/x
  3. Step 3: Cross multiply
    53,218.50x = 79,366.50 × 79,366.50
  4. Step 4: Simplify right side
    53,218.50x = 6,299,041,322.25
  5. Step 5: Solve for x
    x = 6,299,041,322.25/53,218.50
  6. Step 6: Final answer
    x = 118,361.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.