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Finding the Fourth Proportional to 500,893.75, 751,384.37 and 126,916.75

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Solution

The fourth proportional to 500,893.75, 751,384.37 and 126,916.75 is: 190,386.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,893.75 : 751,384.37 = 126,916.75 : x
  2. Step 2: Convert to fraction form
    500,893.75/751,384.37 = 126,916.75/x
  3. Step 3: Cross multiply
    500,893.75x = 751,384.37 × 126,916.75
  4. Step 4: Simplify right side
    500,893.75x = 95,363,262,241.20
  5. Step 5: Solve for x
    x = 95,363,262,241.20/500,893.75
  6. Step 6: Final answer
    x = 190,386.21

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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.