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Finding the Third Proportional to 74,570.63 and 109,653.75

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Solution

The third proportional to 74,570.63 and 109,653.75 is: 161,242.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,570.63 : 109,653.75 = 109,653.75 : x
  2. Step 2: Convert to fraction form
    74,570.63/109,653.75 = 109,653.75/x
  3. Step 3: Cross multiply
    74,570.63x = 109,653.75 × 109,653.75
  4. Step 4: Simplify right side
    74,570.63x = 12,023,944,889.06
  5. Step 5: Solve for x
    x = 12,023,944,889.06/74,570.63
  6. Step 6: Final answer
    x = 161,242.38

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.