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Finding the Fourth Proportional to 455,817.16, 683,726.24 and 118,857.52

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Solution

The fourth proportional to 455,817.16, 683,726.24 and 118,857.52 is: 178,286.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,817.16 : 683,726.24 = 118,857.52 : x
  2. Step 2: Convert to fraction form
    455,817.16/683,726.24 = 118,857.52/x
  3. Step 3: Cross multiply
    455,817.16x = 683,726.24 × 118,857.52
  4. Step 4: Simplify right side
    455,817.16x = 81,266,005,245.32
  5. Step 5: Solve for x
    x = 81,266,005,245.32/455,817.16
  6. Step 6: Final answer
    x = 178,286.41

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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.