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Finding the Fourth Proportional to 229,348.60, 343,804.20 and 178,719.55

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Solution

The fourth proportional to 229,348.60, 343,804.20 and 178,719.55 is: 267,908.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,348.60 : 343,804.20 = 178,719.55 : x
  2. Step 2: Convert to fraction form
    229,348.60/343,804.20 = 178,719.55/x
  3. Step 3: Cross multiply
    229,348.60x = 343,804.20 × 178,719.55
  4. Step 4: Simplify right side
    229,348.60x = 61,444,531,912.11
  5. Step 5: Solve for x
    x = 61,444,531,912.11/229,348.60
  6. Step 6: Final answer
    x = 267,908.90

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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.