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Finding the Fourth Proportional to 73,814,779.80, 110,722,169.70 and 30,669,643.80

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Solution

The fourth proportional to 73,814,779.80, 110,722,169.70 and 30,669,643.80 is: 46,004,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,814,779.80 : 110,722,169.70 = 30,669,643.80 : x
  2. Step 2: Convert to fraction form
    73,814,779.80/110,722,169.70 = 30,669,643.80/x
  3. Step 3: Cross multiply
    73,814,779.80x = 110,722,169.70 × 30,669,643.80
  4. Step 4: Simplify right side
    73,814,779.80x = 3,395,809,505,462,153
  5. Step 5: Solve for x
    x = 3,395,809,505,462,153/73,814,779.80
  6. Step 6: Final answer
    x = 46,004,465.70

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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.