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Finding the Fourth Proportional to 501,114.38, 751,715.37 and 127,137.38

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Solution

The fourth proportional to 501,114.38, 751,715.37 and 127,137.38 is: 190,717.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,114.38 : 751,715.37 = 127,137.38 : x
  2. Step 2: Convert to fraction form
    501,114.38/751,715.37 = 127,137.38/x
  3. Step 3: Cross multiply
    501,114.38x = 751,715.37 × 127,137.38
  4. Step 4: Simplify right side
    501,114.38x = 95,571,118,888.95
  5. Step 5: Solve for x
    x = 95,571,118,888.95/501,114.38
  6. Step 6: Final answer
    x = 190,717.18

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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.