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Finding the Fourth Proportional to 74,369.72, 111,578.88 and 29,973.62

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Solution

The fourth proportional to 74,369.72, 111,578.88 and 29,973.62 is: 44,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,369.72 : 111,578.88 = 29,973.62 : x
  2. Step 2: Convert to fraction form
    74,369.72/111,578.88 = 29,973.62/x
  3. Step 3: Cross multiply
    74,369.72x = 111,578.88 × 29,973.62
  4. Step 4: Simplify right side
    74,369.72x = 3,344,422,949.15
  5. Step 5: Solve for x
    x = 3,344,422,949.15/74,369.72
  6. Step 6: Final answer
    x = 44,970.22

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1.5x scale

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.