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Finding the Fourth Proportional to 501,086.25, 751,673.12 and 127,109.25

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Solution

The fourth proportional to 501,086.25, 751,673.12 and 127,109.25 is: 190,674.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,086.25 : 751,673.12 = 127,109.25 : x
  2. Step 2: Convert to fraction form
    501,086.25/751,673.12 = 127,109.25/x
  3. Step 3: Cross multiply
    501,086.25x = 751,673.12 × 127,109.25
  4. Step 4: Simplify right side
    501,086.25x = 95,544,605,892.81
  5. Step 5: Solve for x
    x = 95,544,605,892.81/501,086.25
  6. Step 6: Final answer
    x = 190,674.97

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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.