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Finding the Fourth Proportional to 181,918.17, 251,047.22 and 101,345.88

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Solution

The fourth proportional to 181,918.17, 251,047.22 and 101,345.88 is: 139,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,918.17 : 251,047.22 = 101,345.88 : x
  2. Step 2: Convert to fraction form
    181,918.17/251,047.22 = 101,345.88/x
  3. Step 3: Cross multiply
    181,918.17x = 251,047.22 × 101,345.88
  4. Step 4: Simplify right side
    181,918.17x = 25,442,601,867.15
  5. Step 5: Solve for x
    x = 25,442,601,867.15/181,918.17
  6. Step 6: Final answer
    x = 139,857.40

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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.