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Finding the Fourth Proportional to 272,189.17, 375,627.16 and 149,673.79

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Solution

The fourth proportional to 272,189.17, 375,627.16 and 149,673.79 is: 206,553.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,189.17 : 375,627.16 = 149,673.79 : x
  2. Step 2: Convert to fraction form
    272,189.17/375,627.16 = 149,673.79/x
  3. Step 3: Cross multiply
    272,189.17x = 375,627.16 × 149,673.79
  4. Step 4: Simplify right side
    272,189.17x = 56,221,538,037.63
  5. Step 5: Solve for x
    x = 56,221,538,037.63/272,189.17
  6. Step 6: Final answer
    x = 206,553.18

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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.