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Finding the Third Proportional to 74,400.19 and 112,271.06

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Solution

The third proportional to 74,400.19 and 112,271.06 is: 169,418.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,400.19 : 112,271.06 = 112,271.06 : x
  2. Step 2: Convert to fraction form
    74,400.19/112,271.06 = 112,271.06/x
  3. Step 3: Cross multiply
    74,400.19x = 112,271.06 × 112,271.06
  4. Step 4: Simplify right side
    74,400.19x = 12,604,791,474.88
  5. Step 5: Solve for x
    x = 12,604,791,474.88/74,400.19
  6. Step 6: Final answer
    x = 169,418.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.