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Finding the Fourth Proportional to 171,903.12, 237,236.76 and 114,443.28

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Solution

The fourth proportional to 171,903.12, 237,236.76 and 114,443.28 is: 157,938.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,903.12 : 237,236.76 = 114,443.28 : x
  2. Step 2: Convert to fraction form
    171,903.12/237,236.76 = 114,443.28/x
  3. Step 3: Cross multiply
    171,903.12x = 237,236.76 × 114,443.28
  4. Step 4: Simplify right side
    171,903.12x = 27,150,152,950.97
  5. Step 5: Solve for x
    x = 27,150,152,950.97/171,903.12
  6. Step 6: Final answer
    x = 157,938.69

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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.