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Finding the Fourth Proportional to 73,515.60, 110,346.30 and 36,117.90

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Solution

The fourth proportional to 73,515.60, 110,346.30 and 36,117.90 is: 54,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,515.60 : 110,346.30 = 36,117.90 : x
  2. Step 2: Convert to fraction form
    73,515.60/110,346.30 = 36,117.90/x
  3. Step 3: Cross multiply
    73,515.60x = 110,346.30 × 36,117.90
  4. Step 4: Simplify right side
    73,515.60x = 3,985,476,628.77
  5. Step 5: Solve for x
    x = 3,985,476,628.77/73,515.60
  6. Step 6: Final answer
    x = 54,212.67

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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.