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Finding the Fourth Proportional to 115,419.90, 173,112.51 and 36,523.89

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Solution

The fourth proportional to 115,419.90, 173,112.51 and 36,523.89 is: 54,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,419.90 : 173,112.51 = 36,523.89 : x
  2. Step 2: Convert to fraction form
    115,419.90/173,112.51 = 36,523.89/x
  3. Step 3: Cross multiply
    115,419.90x = 173,112.51 × 36,523.89
  4. Step 4: Simplify right side
    115,419.90x = 6,322,742,272.86
  5. Step 5: Solve for x
    x = 6,322,742,272.86/115,419.90
  6. Step 6: Final answer
    x = 54,780.35

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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.