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Finding the Fourth Proportional to 253,106.78, 379,666.98 and 110,878.88

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Solution

The fourth proportional to 253,106.78, 379,666.98 and 110,878.88 is: 166,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,106.78 : 379,666.98 = 110,878.88 : x
  2. Step 2: Convert to fraction form
    253,106.78/379,666.98 = 110,878.88/x
  3. Step 3: Cross multiply
    253,106.78x = 379,666.98 × 110,878.88
  4. Step 4: Simplify right side
    253,106.78x = 42,097,047,617.05
  5. Step 5: Solve for x
    x = 42,097,047,617.05/253,106.78
  6. Step 6: Final answer
    x = 166,321.30

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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.