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Finding the Fourth Proportional to 171,636.81, 236,871.27 and 103,670.32

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Solution

The fourth proportional to 171,636.81, 236,871.27 and 103,670.32 is: 143,072.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,636.81 : 236,871.27 = 103,670.32 : x
  2. Step 2: Convert to fraction form
    171,636.81/236,871.27 = 103,670.32/x
  3. Step 3: Cross multiply
    171,636.81x = 236,871.27 × 103,670.32
  4. Step 4: Simplify right side
    171,636.81x = 24,556,520,359.71
  5. Step 5: Solve for x
    x = 24,556,520,359.71/171,636.81
  6. Step 6: Final answer
    x = 143,072.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.