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Finding the Fourth Proportional to 181,918.74, 251,047.23 and 101,341.50

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Solution

The fourth proportional to 181,918.74, 251,047.23 and 101,341.50 is: 139,850.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,918.74 : 251,047.23 = 101,341.50 : x
  2. Step 2: Convert to fraction form
    181,918.74/251,047.23 = 101,341.50/x
  3. Step 3: Cross multiply
    181,918.74x = 251,047.23 × 101,341.50
  4. Step 4: Simplify right side
    181,918.74x = 25,441,502,859.05
  5. Step 5: Solve for x
    x = 25,441,502,859.05/181,918.74
  6. Step 6: Final answer
    x = 139,850.92

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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.