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Finding the Fourth Proportional to 172,434.15, 237,824.31 and 112,024.25

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Solution

The fourth proportional to 172,434.15, 237,824.31 and 112,024.25 is: 154,505.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,434.15 : 237,824.31 = 112,024.25 : x
  2. Step 2: Convert to fraction form
    172,434.15/237,824.31 = 112,024.25/x
  3. Step 3: Cross multiply
    172,434.15x = 237,824.31 × 112,024.25
  4. Step 4: Simplify right side
    172,434.15x = 26,642,089,959.52
  5. Step 5: Solve for x
    x = 26,642,089,959.52/172,434.15
  6. Step 6: Final answer
    x = 154,505.88

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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.