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Finding the Fourth Proportional to 171,178, 236,221.20 and 94,699.92

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Solution

The fourth proportional to 171,178, 236,221.20 and 94,699.92 is: 130,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,178 : 236,221.20 = 94,699.92 : x
  2. Step 2: Convert to fraction form
    171,178/236,221.20 = 94,699.92/x
  3. Step 3: Cross multiply
    171,178x = 236,221.20 × 94,699.92
  4. Step 4: Simplify right side
    171,178x = 22,370,128,742.30
  5. Step 5: Solve for x
    x = 22,370,128,742.30/171,178
  6. Step 6: Final answer
    x = 130,683.43

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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.