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Finding the Fourth Proportional to 171,425.45, 257,088.51 and 51,477.56

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Solution

The fourth proportional to 171,425.45, 257,088.51 and 51,477.56 is: 77,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,425.45 : 257,088.51 = 51,477.56 : x
  2. Step 2: Convert to fraction form
    171,425.45/257,088.51 = 51,477.56/x
  3. Step 3: Cross multiply
    171,425.45x = 257,088.51 × 51,477.56
  4. Step 4: Simplify right side
    171,425.45x = 13,234,287,913.39
  5. Step 5: Solve for x
    x = 13,234,287,913.39/171,425.45
  6. Step 6: Final answer
    x = 77,201.42

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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.