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Finding the Fourth Proportional to 455,768.39, 683,652.89 and 118,808.18

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Solution

The fourth proportional to 455,768.39, 683,652.89 and 118,808.18 is: 178,212.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,768.39 : 683,652.89 = 118,808.18 : x
  2. Step 2: Convert to fraction form
    455,768.39/683,652.89 = 118,808.18/x
  3. Step 3: Cross multiply
    455,768.39x = 683,652.89 × 118,808.18
  4. Step 4: Simplify right side
    455,768.39x = 81,223,558,900.64
  5. Step 5: Solve for x
    x = 81,223,558,900.64/455,768.39
  6. Step 6: Final answer
    x = 178,212.36

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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.