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Finding the Fourth Proportional to 150,507.07, 225,742.16 and 87,361.54

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Solution

The fourth proportional to 150,507.07, 225,742.16 and 87,361.54 is: 131,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,507.07 : 225,742.16 = 87,361.54 : x
  2. Step 2: Convert to fraction form
    150,507.07/225,742.16 = 87,361.54/x
  3. Step 3: Cross multiply
    150,507.07x = 225,742.16 × 87,361.54
  4. Step 4: Simplify right side
    150,507.07x = 19,721,182,303.72
  5. Step 5: Solve for x
    x = 19,721,182,303.72/150,507.07
  6. Step 6: Final answer
    x = 131,031.60

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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.