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Finding the Fourth Proportional to 74,292.96, 111,443.94 and 29,919.72

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Solution

The fourth proportional to 74,292.96, 111,443.94 and 29,919.72 is: 44,881.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,292.96 : 111,443.94 = 29,919.72 : x
  2. Step 2: Convert to fraction form
    74,292.96/111,443.94 = 29,919.72/x
  3. Step 3: Cross multiply
    74,292.96x = 111,443.94 × 29,919.72
  4. Step 4: Simplify right side
    74,292.96x = 3,334,371,480.50
  5. Step 5: Solve for x
    x = 3,334,371,480.50/74,292.96
  6. Step 6: Final answer
    x = 44,881.39

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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.