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Finding the Fourth Proportional to 177,798.78, 266,741.64 and 125,310.78

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Solution

The fourth proportional to 177,798.78, 266,741.64 and 125,310.78 is: 187,996.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,798.78 : 266,741.64 = 125,310.78 : x
  2. Step 2: Convert to fraction form
    177,798.78/266,741.64 = 125,310.78/x
  3. Step 3: Cross multiply
    177,798.78x = 266,741.64 × 125,310.78
  4. Step 4: Simplify right side
    177,798.78x = 33,425,602,966.88
  5. Step 5: Solve for x
    x = 33,425,602,966.88/177,798.78
  6. Step 6: Final answer
    x = 187,996.81

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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.