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Finding the Fourth Proportional to 450,509.51, 675,786.74 and 134,936.34

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Solution

The fourth proportional to 450,509.51, 675,786.74 and 134,936.34 is: 202,411.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,509.51 : 675,786.74 = 134,936.34 : x
  2. Step 2: Convert to fraction form
    450,509.51/675,786.74 = 134,936.34/x
  3. Step 3: Cross multiply
    450,509.51x = 675,786.74 × 134,936.34
  4. Step 4: Simplify right side
    450,509.51x = 91,188,189,316.13
  5. Step 5: Solve for x
    x = 91,188,189,316.13/450,509.51
  6. Step 6: Final answer
    x = 202,411.24

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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.