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Finding the Fourth Proportional to 171,348.76, 257,047.68 and 53,029.36

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Solution

The fourth proportional to 171,348.76, 257,047.68 and 53,029.36 is: 79,551.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,348.76 : 257,047.68 = 53,029.36 : x
  2. Step 2: Convert to fraction form
    171,348.76/257,047.68 = 53,029.36/x
  3. Step 3: Cross multiply
    171,348.76x = 257,047.68 × 53,029.36
  4. Step 4: Simplify right side
    171,348.76x = 13,631,073,959.88
  5. Step 5: Solve for x
    x = 13,631,073,959.88/171,348.76
  6. Step 6: Final answer
    x = 79,551.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.