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Finding the Fourth Proportional to 178,956, 268,435.62 and 54,297

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Solution

The fourth proportional to 178,956, 268,435.62 and 54,297 is: 81,445.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,956 : 268,435.62 = 54,297 : x
  2. Step 2: Convert to fraction form
    178,956/268,435.62 = 54,297/x
  3. Step 3: Cross multiply
    178,956x = 268,435.62 × 54,297
  4. Step 4: Simplify right side
    178,956x = 14,575,248,859.14
  5. Step 5: Solve for x
    x = 14,575,248,859.14/178,956
  6. Step 6: Final answer
    x = 81,445.99

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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.