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Finding the Fourth Proportional to 165,620.80, 248,440.80 and 47,300.80

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Solution

The fourth proportional to 165,620.80, 248,440.80 and 47,300.80 is: 70,953.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,620.80 : 248,440.80 = 47,300.80 : x
  2. Step 2: Convert to fraction form
    165,620.80/248,440.80 = 47,300.80/x
  3. Step 3: Cross multiply
    165,620.80x = 248,440.80 × 47,300.80
  4. Step 4: Simplify right side
    165,620.80x = 11,751,448,592.64
  5. Step 5: Solve for x
    x = 11,751,448,592.64/165,620.80
  6. Step 6: Final answer
    x = 70,953.94

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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.