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Finding the Fourth Proportional to 272,333, 375,819.54 and 153,101

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Solution

The fourth proportional to 272,333, 375,819.54 and 153,101 is: 211,279.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,333 : 375,819.54 = 153,101 : x
  2. Step 2: Convert to fraction form
    272,333/375,819.54 = 153,101/x
  3. Step 3: Cross multiply
    272,333x = 375,819.54 × 153,101
  4. Step 4: Simplify right side
    272,333x = 57,538,347,393.54
  5. Step 5: Solve for x
    x = 57,538,347,393.54/272,333
  6. Step 6: Final answer
    x = 211,279.38

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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.