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Finding the Fourth Proportional to 171,873.16, 237,213.46 and 100,253.20

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Solution

The fourth proportional to 171,873.16, 237,213.46 and 100,253.20 is: 138,366.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,873.16 : 237,213.46 = 100,253.20 : x
  2. Step 2: Convert to fraction form
    171,873.16/237,213.46 = 100,253.20/x
  3. Step 3: Cross multiply
    171,873.16x = 237,213.46 × 100,253.20
  4. Step 4: Simplify right side
    171,873.16x = 23,781,408,448.07
  5. Step 5: Solve for x
    x = 23,781,408,448.07/171,873.16
  6. Step 6: Final answer
    x = 138,366.04

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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.