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Finding the Fourth Proportional to 98,893.41, 148,364.71 and 28,772.72

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Solution

The fourth proportional to 98,893.41, 148,364.71 and 28,772.72 is: 43,166.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,893.41 : 148,364.71 = 28,772.72 : x
  2. Step 2: Convert to fraction form
    98,893.41/148,364.71 = 28,772.72/x
  3. Step 3: Cross multiply
    98,893.41x = 148,364.71 × 28,772.72
  4. Step 4: Simplify right side
    98,893.41x = 4,268,856,163.17
  5. Step 5: Solve for x
    x = 4,268,856,163.17/98,893.41
  6. Step 6: Final answer
    x = 43,166.24

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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.