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Finding the Fourth Proportional to 181,661.94, 272,460.78 and 55,271.70

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Solution

The fourth proportional to 181,661.94, 272,460.78 and 55,271.70 is: 82,897.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,661.94 : 272,460.78 = 55,271.70 : x
  2. Step 2: Convert to fraction form
    181,661.94/272,460.78 = 55,271.70/x
  3. Step 3: Cross multiply
    181,661.94x = 272,460.78 × 55,271.70
  4. Step 4: Simplify right side
    181,661.94x = 15,059,370,493.93
  5. Step 5: Solve for x
    x = 15,059,370,493.93/181,661.94
  6. Step 6: Final answer
    x = 82,897.77

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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.