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Finding the Fourth Proportional to 470,896.20, 706,085.10 and 155,190.60

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Solution

The fourth proportional to 470,896.20, 706,085.10 and 155,190.60 is: 232,700.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,896.20 : 706,085.10 = 155,190.60 : x
  2. Step 2: Convert to fraction form
    470,896.20/706,085.10 = 155,190.60/x
  3. Step 3: Cross multiply
    470,896.20x = 706,085.10 × 155,190.60
  4. Step 4: Simplify right side
    470,896.20x = 109,577,770,320.06
  5. Step 5: Solve for x
    x = 109,577,770,320.06/470,896.20
  6. Step 6: Final answer
    x = 232,700.48

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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.