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Finding the Fourth Proportional to 248,567.70, 372,913.65 and 80,103.90

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Solution

The fourth proportional to 248,567.70, 372,913.65 and 80,103.90 is: 120,175.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,567.70 : 372,913.65 = 80,103.90 : x
  2. Step 2: Convert to fraction form
    248,567.70/372,913.65 = 80,103.90/x
  3. Step 3: Cross multiply
    248,567.70x = 372,913.65 × 80,103.90
  4. Step 4: Simplify right side
    248,567.70x = 29,871,837,728.24
  5. Step 5: Solve for x
    x = 29,871,837,728.24/248,567.70
  6. Step 6: Final answer
    x = 120,175.86

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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.