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Finding the Fourth Proportional to 73,872,074.80, 110,808,112.20 and 30,726,938.80

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Solution

The fourth proportional to 73,872,074.80, 110,808,112.20 and 30,726,938.80 is: 46,090,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,872,074.80 : 110,808,112.20 = 30,726,938.80 : x
  2. Step 2: Convert to fraction form
    73,872,074.80/110,808,112.20 = 30,726,938.80/x
  3. Step 3: Cross multiply
    73,872,074.80x = 110,808,112.20 × 30,726,938.80
  4. Step 4: Simplify right side
    73,872,074.80x = 3,404,794,082,112,933.50
  5. Step 5: Solve for x
    x = 3,404,794,082,112,933.50/73,872,074.80
  6. Step 6: Final answer
    x = 46,090,408.20

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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.