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Finding the Fourth Proportional to 508,889.12, 763,361.52 and 153,894.56

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Solution

The fourth proportional to 508,889.12, 763,361.52 and 153,894.56 is: 230,850.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,889.12 : 763,361.52 = 153,894.56 : x
  2. Step 2: Convert to fraction form
    508,889.12/763,361.52 = 153,894.56/x
  3. Step 3: Cross multiply
    508,889.12x = 763,361.52 × 153,894.56
  4. Step 4: Simplify right side
    508,889.12x = 117,477,185,241.33
  5. Step 5: Solve for x
    x = 117,477,185,241.33/508,889.12
  6. Step 6: Final answer
    x = 230,850.26

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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.