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Finding the Fourth Proportional to 272,491.20, 375,978.24 and 159,262.08

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Solution

The fourth proportional to 272,491.20, 375,978.24 and 159,262.08 is: 219,746.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,491.20 : 375,978.24 = 159,262.08 : x
  2. Step 2: Convert to fraction form
    272,491.20/375,978.24 = 159,262.08/x
  3. Step 3: Cross multiply
    272,491.20x = 375,978.24 × 159,262.08
  4. Step 4: Simplify right side
    272,491.20x = 59,879,076,537.14
  5. Step 5: Solve for x
    x = 59,879,076,537.14/272,491.20
  6. Step 6: Final answer
    x = 219,746.83

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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.