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Finding the Fourth Proportional to 272,468.20, 376,000.20 and 157,751.68

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Solution

The fourth proportional to 272,468.20, 376,000.20 and 157,751.68 is: 217,693.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,468.20 : 376,000.20 = 157,751.68 : x
  2. Step 2: Convert to fraction form
    272,468.20/376,000.20 = 157,751.68/x
  3. Step 3: Cross multiply
    272,468.20x = 376,000.20 × 157,751.68
  4. Step 4: Simplify right side
    272,468.20x = 59,314,663,230.34
  5. Step 5: Solve for x
    x = 59,314,663,230.34/272,468.20
  6. Step 6: Final answer
    x = 217,693.89

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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.