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Finding the Fourth Proportional to 171,778.77, 257,706.60 and 51,837.79

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Solution

The fourth proportional to 171,778.77, 257,706.60 and 51,837.79 is: 77,768.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,778.77 : 257,706.60 = 51,837.79 : x
  2. Step 2: Convert to fraction form
    171,778.77/257,706.60 = 51,837.79/x
  3. Step 3: Cross multiply
    171,778.77x = 257,706.60 × 51,837.79
  4. Step 4: Simplify right side
    171,778.77x = 13,358,941,670.63
  5. Step 5: Solve for x
    x = 13,358,941,670.63/171,778.77
  6. Step 6: Final answer
    x = 77,768.29

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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.