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Finding the Fourth Proportional to 49,928,148.80, 69,809,828.80 and 49,928,148.80

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Solution

The fourth proportional to 49,928,148.80, 69,809,828.80 and 49,928,148.80 is: 69,809,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,928,148.80 : 69,809,828.80 = 49,928,148.80 : x
  2. Step 2: Convert to fraction form
    49,928,148.80/69,809,828.80 = 49,928,148.80/x
  3. Step 3: Cross multiply
    49,928,148.80x = 69,809,828.80 × 49,928,148.80
  4. Step 4: Simplify right side
    49,928,148.80x = 3,485,475,520,028,925
  5. Step 5: Solve for x
    x = 3,485,475,520,028,925/49,928,148.80
  6. Step 6: Final answer
    x = 69,809,828.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.