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Finding the Fourth Proportional to 73,145.67, 109,718.55 and 17,741.67

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Solution

The fourth proportional to 73,145.67, 109,718.55 and 17,741.67 is: 26,612.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,145.67 : 109,718.55 = 17,741.67 : x
  2. Step 2: Convert to fraction form
    73,145.67/109,718.55 = 17,741.67/x
  3. Step 3: Cross multiply
    73,145.67x = 109,718.55 × 17,741.67
  4. Step 4: Simplify right side
    73,145.67x = 1,946,590,306.98
  5. Step 5: Solve for x
    x = 1,946,590,306.98/73,145.67
  6. Step 6: Final answer
    x = 26,612.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.