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Finding the Fourth Proportional to 371,765.75, 557,647.53 and 105,526.49

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Solution

The fourth proportional to 371,765.75, 557,647.53 and 105,526.49 is: 158,289.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,765.75 : 557,647.53 = 105,526.49 : x
  2. Step 2: Convert to fraction form
    371,765.75/557,647.53 = 105,526.49/x
  3. Step 3: Cross multiply
    371,765.75x = 557,647.53 × 105,526.49
  4. Step 4: Simplify right side
    371,765.75x = 58,846,586,498.07
  5. Step 5: Solve for x
    x = 58,846,586,498.07/371,765.75
  6. Step 6: Final answer
    x = 158,289.42

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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.