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Finding the Fourth Proportional to 304,172.80, 455,936.64 and 117,103.36

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Solution

The fourth proportional to 304,172.80, 455,936.64 and 117,103.36 is: 175,530.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,172.80 : 455,936.64 = 117,103.36 : x
  2. Step 2: Convert to fraction form
    304,172.80/455,936.64 = 117,103.36/x
  3. Step 3: Cross multiply
    304,172.80x = 455,936.64 × 117,103.36
  4. Step 4: Simplify right side
    304,172.80x = 53,391,712,491.11
  5. Step 5: Solve for x
    x = 53,391,712,491.11/304,172.80
  6. Step 6: Final answer
    x = 175,530.86

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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.