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Finding the Fourth Proportional to 99,283.63, 137,012.46 and 53,961.62

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Solution

The fourth proportional to 99,283.63, 137,012.46 and 53,961.62 is: 74,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,283.63 : 137,012.46 = 53,961.62 : x
  2. Step 2: Convert to fraction form
    99,283.63/137,012.46 = 53,961.62/x
  3. Step 3: Cross multiply
    99,283.63x = 137,012.46 × 53,961.62
  4. Step 4: Simplify right side
    99,283.63x = 7,393,413,616.72
  5. Step 5: Solve for x
    x = 7,393,413,616.72/99,283.63
  6. Step 6: Final answer
    x = 74,467.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.