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Finding the Fourth Proportional to 269,837,421.20, 372,375,765.80 and 146,078,098.28

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Solution

The fourth proportional to 269,837,421.20, 372,375,765.80 and 146,078,098.28 is: 201,587,843.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,837,421.20 : 372,375,765.80 = 146,078,098.28 : x
  2. Step 2: Convert to fraction form
    269,837,421.20/372,375,765.80 = 146,078,098.28/x
  3. Step 3: Cross multiply
    269,837,421.20x = 372,375,765.80 × 146,078,098.28
  4. Step 4: Simplify right side
    269,837,421.20x = 54,395,943,713,622,664
  5. Step 5: Solve for x
    x = 54,395,943,713,622,664/269,837,421.20
  6. Step 6: Final answer
    x = 201,587,843.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.