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Finding the Fourth Proportional to 298,405.56, 447,613.08 and 166,126.60

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Solution

The fourth proportional to 298,405.56, 447,613.08 and 166,126.60 is: 249,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,405.56 : 447,613.08 = 166,126.60 : x
  2. Step 2: Convert to fraction form
    298,405.56/447,613.08 = 166,126.60/x
  3. Step 3: Cross multiply
    298,405.56x = 447,613.08 × 166,126.60
  4. Step 4: Simplify right side
    298,405.56x = 74,360,439,095.93
  5. Step 5: Solve for x
    x = 74,360,439,095.93/298,405.56
  6. Step 6: Final answer
    x = 249,192.54

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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.