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Finding the Fourth Proportional to 251,770.72, 377,655.72 and 74,402.32

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Solution

The fourth proportional to 251,770.72, 377,655.72 and 74,402.32 is: 111,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,770.72 : 377,655.72 = 74,402.32 : x
  2. Step 2: Convert to fraction form
    251,770.72/377,655.72 = 74,402.32/x
  3. Step 3: Cross multiply
    251,770.72x = 377,655.72 × 74,402.32
  4. Step 4: Simplify right side
    251,770.72x = 28,098,461,729.27
  5. Step 5: Solve for x
    x = 28,098,461,729.27/251,770.72
  6. Step 6: Final answer
    x = 111,603.37

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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.