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Finding the Fourth Proportional to 171,871.69, 257,909.60 and 92,984.17

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Solution

The fourth proportional to 171,871.69, 257,909.60 and 92,984.17 is: 139,531.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,871.69 : 257,909.60 = 92,984.17 : x
  2. Step 2: Convert to fraction form
    171,871.69/257,909.60 = 92,984.17/x
  3. Step 3: Cross multiply
    171,871.69x = 257,909.60 × 92,984.17
  4. Step 4: Simplify right side
    171,871.69x = 23,981,510,091.03
  5. Step 5: Solve for x
    x = 23,981,510,091.03/171,871.69
  6. Step 6: Final answer
    x = 139,531.47

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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.