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Finding the Third Proportional to 74,160 and 110,403

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Solution

The third proportional to 74,160 and 110,403 is: 164,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,160 : 110,403 = 110,403 : x
  2. Step 2: Convert to fraction form
    74,160/110,403 = 110,403/x
  3. Step 3: Cross multiply
    74,160x = 110,403 × 110,403
  4. Step 4: Simplify right side
    74,160x = 12,188,822,409
  5. Step 5: Solve for x
    x = 12,188,822,409/74,160
  6. Step 6: Final answer
    x = 164,358.45

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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.