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Finding the Fourth Proportional to 148,485.98, 204,940.43 and 88,090.16

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Solution

The fourth proportional to 148,485.98, 204,940.43 and 88,090.16 is: 121,582.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,485.98 : 204,940.43 = 88,090.16 : x
  2. Step 2: Convert to fraction form
    148,485.98/204,940.43 = 88,090.16/x
  3. Step 3: Cross multiply
    148,485.98x = 204,940.43 × 88,090.16
  4. Step 4: Simplify right side
    148,485.98x = 18,053,235,269.17
  5. Step 5: Solve for x
    x = 18,053,235,269.17/148,485.98
  6. Step 6: Final answer
    x = 121,582.09

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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.