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Finding the Fourth Proportional to 312,197.54, 468,009.26 and 112,469.09

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Solution

The fourth proportional to 312,197.54, 468,009.26 and 112,469.09 is: 168,600.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,197.54 : 468,009.26 = 112,469.09 : x
  2. Step 2: Convert to fraction form
    312,197.54/468,009.26 = 112,469.09/x
  3. Step 3: Cross multiply
    312,197.54x = 468,009.26 × 112,469.09
  4. Step 4: Simplify right side
    312,197.54x = 52,636,575,583.77
  5. Step 5: Solve for x
    x = 52,636,575,583.77/312,197.54
  6. Step 6: Final answer
    x = 168,600.23

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1.5x scale

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.