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Finding the Fourth Proportional to 517,769.91, 776,699.73 and 158,021.69

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Solution

The fourth proportional to 517,769.91, 776,699.73 and 158,021.69 is: 237,046.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,769.91 : 776,699.73 = 158,021.69 : x
  2. Step 2: Convert to fraction form
    517,769.91/776,699.73 = 158,021.69/x
  3. Step 3: Cross multiply
    517,769.91x = 776,699.73 × 158,021.69
  4. Step 4: Simplify right side
    517,769.91x = 122,735,400,073.65
  5. Step 5: Solve for x
    x = 122,735,400,073.65/517,769.91
  6. Step 6: Final answer
    x = 237,046.22

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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.