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Finding the Fourth Proportional to 155,755.94, 233,630.55 and 43,433.16

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Solution

The fourth proportional to 155,755.94, 233,630.55 and 43,433.16 is: 65,148.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,755.94 : 233,630.55 = 43,433.16 : x
  2. Step 2: Convert to fraction form
    155,755.94/233,630.55 = 43,433.16/x
  3. Step 3: Cross multiply
    155,755.94x = 233,630.55 × 43,433.16
  4. Step 4: Simplify right side
    155,755.94x = 10,147,313,059.04
  5. Step 5: Solve for x
    x = 10,147,313,059.04/155,755.94
  6. Step 6: Final answer
    x = 65,148.81

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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.