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Finding the Fourth Proportional to 181,718.31, 272,621.40 and 57,059.31

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Solution

The fourth proportional to 181,718.31, 272,621.40 and 57,059.31 is: 85,602.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,718.31 : 272,621.40 = 57,059.31 : x
  2. Step 2: Convert to fraction form
    181,718.31/272,621.40 = 57,059.31/x
  3. Step 3: Cross multiply
    181,718.31x = 272,621.40 × 57,059.31
  4. Step 4: Simplify right side
    181,718.31x = 15,555,588,975.23
  5. Step 5: Solve for x
    x = 15,555,588,975.23/181,718.31
  6. Step 6: Final answer
    x = 85,602.76

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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.