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Finding the Fourth Proportional to 543,682.36, 815,636.58 and 164,624.32

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Solution

The fourth proportional to 543,682.36, 815,636.58 and 164,624.32 is: 246,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,682.36 : 815,636.58 = 164,624.32 : x
  2. Step 2: Convert to fraction form
    543,682.36/815,636.58 = 164,624.32/x
  3. Step 3: Cross multiply
    543,682.36x = 815,636.58 × 164,624.32
  4. Step 4: Simplify right side
    543,682.36x = 134,273,617,349.63
  5. Step 5: Solve for x
    x = 134,273,617,349.63/543,682.36
  6. Step 6: Final answer
    x = 246,970.71

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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.