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Finding the Fourth Proportional to 245,528.20, 368,527.20 and 127,284.40

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Solution

The fourth proportional to 245,528.20, 368,527.20 and 127,284.40 is: 191,048.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,528.20 : 368,527.20 = 127,284.40 : x
  2. Step 2: Convert to fraction form
    245,528.20/368,527.20 = 127,284.40/x
  3. Step 3: Cross multiply
    245,528.20x = 368,527.20 × 127,284.40
  4. Step 4: Simplify right side
    245,528.20x = 46,907,763,535.68
  5. Step 5: Solve for x
    x = 46,907,763,535.68/245,528.20
  6. Step 6: Final answer
    x = 191,048.37

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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.