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Finding the Fourth Proportional to 181,898.21, 272,780.73 and 69,522.86

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Solution

The fourth proportional to 181,898.21, 272,780.73 and 69,522.86 is: 104,258.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,898.21 : 272,780.73 = 69,522.86 : x
  2. Step 2: Convert to fraction form
    181,898.21/272,780.73 = 69,522.86/x
  3. Step 3: Cross multiply
    181,898.21x = 272,780.73 × 69,522.86
  4. Step 4: Simplify right side
    181,898.21x = 18,964,495,138.58
  5. Step 5: Solve for x
    x = 18,964,495,138.58/181,898.21
  6. Step 6: Final answer
    x = 104,258.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.