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Finding the Fourth Proportional to 304,752.51, 457,040.49 and 91,511.81

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Solution

The fourth proportional to 304,752.51, 457,040.49 and 91,511.81 is: 137,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,752.51 : 457,040.49 = 91,511.81 : x
  2. Step 2: Convert to fraction form
    304,752.51/457,040.49 = 91,511.81/x
  3. Step 3: Cross multiply
    304,752.51x = 457,040.49 × 91,511.81
  4. Step 4: Simplify right side
    304,752.51x = 41,824,600,197.98
  5. Step 5: Solve for x
    x = 41,824,600,197.98/304,752.51
  6. Step 6: Final answer
    x = 137,241.20

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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.