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Finding the Fourth Proportional to 171,676.95, 257,629.68 and 70,557.93

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Solution

The fourth proportional to 171,676.95, 257,629.68 and 70,557.93 is: 105,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,676.95 : 257,629.68 = 70,557.93 : x
  2. Step 2: Convert to fraction form
    171,676.95/257,629.68 = 70,557.93/x
  3. Step 3: Cross multiply
    171,676.95x = 257,629.68 × 70,557.93
  4. Step 4: Simplify right side
    171,676.95x = 18,177,816,927.36
  5. Step 5: Solve for x
    x = 18,177,816,927.36/171,676.95
  6. Step 6: Final answer
    x = 105,883.85

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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.