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Finding the Fourth Proportional to 234,661.56, 351,995.28 and 155,208.12

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Solution

The fourth proportional to 234,661.56, 351,995.28 and 155,208.12 is: 232,814.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,661.56 : 351,995.28 = 155,208.12 : x
  2. Step 2: Convert to fraction form
    234,661.56/351,995.28 = 155,208.12/x
  3. Step 3: Cross multiply
    234,661.56x = 351,995.28 × 155,208.12
  4. Step 4: Simplify right side
    234,661.56x = 54,632,525,657.67
  5. Step 5: Solve for x
    x = 54,632,525,657.67/234,661.56
  6. Step 6: Final answer
    x = 232,814.12

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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.