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Finding the Fourth Proportional to 74,271, 111,421.08 and 32,718

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Solution

The fourth proportional to 74,271, 111,421.08 and 32,718 is: 49,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,271 : 111,421.08 = 32,718 : x
  2. Step 2: Convert to fraction form
    74,271/111,421.08 = 32,718/x
  3. Step 3: Cross multiply
    74,271x = 111,421.08 × 32,718
  4. Step 4: Simplify right side
    74,271x = 3,645,474,895.44
  5. Step 5: Solve for x
    x = 3,645,474,895.44/74,271
  6. Step 6: Final answer
    x = 49,083.42

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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.