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Finding the Fourth Proportional to 251,425.72, 377,375.56 and 91,656.14

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Solution

The fourth proportional to 251,425.72, 377,375.56 and 91,656.14 is: 137,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,425.72 : 377,375.56 = 91,656.14 : x
  2. Step 2: Convert to fraction form
    251,425.72/377,375.56 = 91,656.14/x
  3. Step 3: Cross multiply
    251,425.72x = 377,375.56 × 91,656.14
  4. Step 4: Simplify right side
    251,425.72x = 34,588,787,159.94
  5. Step 5: Solve for x
    x = 34,588,787,159.94/251,425.72
  6. Step 6: Final answer
    x = 137,570.60

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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.