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Finding the Fourth Proportional to 245,352.70, 368,138.40 and 112,164.40

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Solution

The fourth proportional to 245,352.70, 368,138.40 and 112,164.40 is: 168,296.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,352.70 : 368,138.40 = 112,164.40 : x
  2. Step 2: Convert to fraction form
    245,352.70/368,138.40 = 112,164.40/x
  3. Step 3: Cross multiply
    245,352.70x = 368,138.40 × 112,164.40
  4. Step 4: Simplify right side
    245,352.70x = 41,292,022,752.96
  5. Step 5: Solve for x
    x = 41,292,022,752.96/245,352.70
  6. Step 6: Final answer
    x = 168,296.59

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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.