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Finding the Fourth Proportional to 115,421.82, 173,137.86 and 36,541.86

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Solution

The fourth proportional to 115,421.82, 173,137.86 and 36,541.86 is: 54,814.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,421.82 : 173,137.86 = 36,541.86 : x
  2. Step 2: Convert to fraction form
    115,421.82/173,137.86 = 36,541.86/x
  3. Step 3: Cross multiply
    115,421.82x = 173,137.86 × 36,541.86
  4. Step 4: Simplify right side
    115,421.82x = 6,326,779,440.82
  5. Step 5: Solve for x
    x = 6,326,779,440.82/115,421.82
  6. Step 6: Final answer
    x = 54,814.41

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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.