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Finding the Fourth Proportional to 251,675.40, 347,134.50 and 171,055.56

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Solution

The fourth proportional to 251,675.40, 347,134.50 and 171,055.56 is: 235,936.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,675.40 : 347,134.50 = 171,055.56 : x
  2. Step 2: Convert to fraction form
    251,675.40/347,134.50 = 171,055.56/x
  3. Step 3: Cross multiply
    251,675.40x = 347,134.50 × 171,055.56
  4. Step 4: Simplify right side
    251,675.40x = 59,379,286,292.82
  5. Step 5: Solve for x
    x = 59,379,286,292.82/251,675.40
  6. Step 6: Final answer
    x = 235,936.00

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1.5x scale

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.