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Finding the Fourth Proportional to 165,276, 247,815.40 and 65,450.52

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Solution

The fourth proportional to 165,276, 247,815.40 and 65,450.52 is: 98,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,276 : 247,815.40 = 65,450.52 : x
  2. Step 2: Convert to fraction form
    165,276/247,815.40 = 65,450.52/x
  3. Step 3: Cross multiply
    165,276x = 247,815.40 × 65,450.52
  4. Step 4: Simplify right side
    165,276x = 16,219,646,794.01
  5. Step 5: Solve for x
    x = 16,219,646,794.01/165,276
  6. Step 6: Final answer
    x = 98,136.73

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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.