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Finding the Fourth Proportional to 492,842.09, 739,354.26 and 155,967.54

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Solution

The fourth proportional to 492,842.09, 739,354.26 and 155,967.54 is: 233,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,842.09 : 739,354.26 = 155,967.54 : x
  2. Step 2: Convert to fraction form
    492,842.09/739,354.26 = 155,967.54/x
  3. Step 3: Cross multiply
    492,842.09x = 739,354.26 × 155,967.54
  4. Step 4: Simplify right side
    492,842.09x = 115,315,265,120.72
  5. Step 5: Solve for x
    x = 115,315,265,120.72/492,842.09
  6. Step 6: Final answer
    x = 233,980.15

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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.