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Finding the Fourth Proportional to 171,357.21, 236,440.13 and 110,919.47

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Solution

The fourth proportional to 171,357.21, 236,440.13 and 110,919.47 is: 153,047.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,357.21 : 236,440.13 = 110,919.47 : x
  2. Step 2: Convert to fraction form
    171,357.21/236,440.13 = 110,919.47/x
  3. Step 3: Cross multiply
    171,357.21x = 236,440.13 × 110,919.47
  4. Step 4: Simplify right side
    171,357.21x = 26,225,812,169.53
  5. Step 5: Solve for x
    x = 26,225,812,169.53/171,357.21
  6. Step 6: Final answer
    x = 153,047.61

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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.