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Finding the Fourth Proportional to 304,846.40, 457,528.80 and 136,625.60

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Solution

The fourth proportional to 304,846.40, 457,528.80 and 136,625.60 is: 205,054.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,846.40 : 457,528.80 = 136,625.60 : x
  2. Step 2: Convert to fraction form
    304,846.40/457,528.80 = 136,625.60/x
  3. Step 3: Cross multiply
    304,846.40x = 457,528.80 × 136,625.60
  4. Step 4: Simplify right side
    304,846.40x = 62,510,146,817.28
  5. Step 5: Solve for x
    x = 62,510,146,817.28/304,846.40
  6. Step 6: Final answer
    x = 205,054.57

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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.