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Finding the Fourth Proportional to 298,636.07, 447,706.14 and 118,610.43

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Solution

The fourth proportional to 298,636.07, 447,706.14 and 118,610.43 is: 177,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,636.07 : 447,706.14 = 118,610.43 : x
  2. Step 2: Convert to fraction form
    298,636.07/447,706.14 = 118,610.43/x
  3. Step 3: Cross multiply
    298,636.07x = 447,706.14 × 118,610.43
  4. Step 4: Simplify right side
    298,636.07x = 53,102,616,405.93
  5. Step 5: Solve for x
    x = 53,102,616,405.93/298,636.07
  6. Step 6: Final answer
    x = 177,817.16

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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.