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Finding the Fourth Proportional to 100,605,323.30, 150,907,984.95 and 49,586,987.30

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Solution

The fourth proportional to 100,605,323.30, 150,907,984.95 and 49,586,987.30 is: 74,380,480.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,605,323.30 : 150,907,984.95 = 49,586,987.30 : x
  2. Step 2: Convert to fraction form
    100,605,323.30/150,907,984.95 = 49,586,987.30/x
  3. Step 3: Cross multiply
    100,605,323.30x = 150,907,984.95 × 49,586,987.30
  4. Step 4: Simplify right side
    100,605,323.30x = 7,483,072,333,184,240
  5. Step 5: Solve for x
    x = 7,483,072,333,184,240/100,605,323.30
  6. Step 6: Final answer
    x = 74,380,480.95

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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.