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Finding the Fourth Proportional to 272,308.06, 375,783.03 and 149,797.80

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Solution

The fourth proportional to 272,308.06, 375,783.03 and 149,797.80 is: 206,719.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,308.06 : 375,783.03 = 149,797.80 : x
  2. Step 2: Convert to fraction form
    272,308.06/375,783.03 = 149,797.80/x
  3. Step 3: Cross multiply
    272,308.06x = 375,783.03 × 149,797.80
  4. Step 4: Simplify right side
    272,308.06x = 56,291,471,171.33
  5. Step 5: Solve for x
    x = 56,291,471,171.33/272,308.06
  6. Step 6: Final answer
    x = 206,719.81

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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.