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Finding the Fourth Proportional to 171,804.78, 257,706.99 and 93,072.78

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Solution

The fourth proportional to 171,804.78, 257,706.99 and 93,072.78 is: 139,609.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,804.78 : 257,706.99 = 93,072.78 : x
  2. Step 2: Convert to fraction form
    171,804.78/257,706.99 = 93,072.78/x
  3. Step 3: Cross multiply
    171,804.78x = 257,706.99 × 93,072.78
  4. Step 4: Simplify right side
    171,804.78x = 23,985,505,984.73
  5. Step 5: Solve for x
    x = 23,985,505,984.73/171,804.78
  6. Step 6: Final answer
    x = 139,609.07

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1.5x scale

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.