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Finding the Fourth Proportional to 272,359.44, 375,829.64 and 157,615.28

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Solution

The fourth proportional to 272,359.44, 375,829.64 and 157,615.28 is: 217,493.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,359.44 : 375,829.64 = 157,615.28 : x
  2. Step 2: Convert to fraction form
    272,359.44/375,829.64 = 157,615.28/x
  3. Step 3: Cross multiply
    272,359.44x = 375,829.64 × 157,615.28
  4. Step 4: Simplify right side
    272,359.44x = 59,236,493,940.90
  5. Step 5: Solve for x
    x = 59,236,493,940.90/272,359.44
  6. Step 6: Final answer
    x = 217,493.82

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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.