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Finding the Fourth Proportional to 501,138.49, 751,668.51 and 141,294.81

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Solution

The fourth proportional to 501,138.49, 751,668.51 and 141,294.81 is: 211,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,138.49 : 751,668.51 = 141,294.81 : x
  2. Step 2: Convert to fraction form
    501,138.49/751,668.51 = 141,294.81/x
  3. Step 3: Cross multiply
    501,138.49x = 751,668.51 × 141,294.81
  4. Step 4: Simplify right side
    501,138.49x = 106,206,858,596.96
  5. Step 5: Solve for x
    x = 106,206,858,596.96/501,138.49
  6. Step 6: Final answer
    x = 211,931.15

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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.