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Finding the Fourth Proportional to 371,433.69, 557,139.87 and 105,193.71

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Solution

The fourth proportional to 371,433.69, 557,139.87 and 105,193.71 is: 157,787.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,433.69 : 557,139.87 = 105,193.71 : x
  2. Step 2: Convert to fraction form
    371,433.69/557,139.87 = 105,193.71/x
  3. Step 3: Cross multiply
    371,433.69x = 557,139.87 × 105,193.71
  4. Step 4: Simplify right side
    371,433.69x = 58,607,609,914.22
  5. Step 5: Solve for x
    x = 58,607,609,914.22/371,433.69
  6. Step 6: Final answer
    x = 157,787.54

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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.