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Finding the Fourth Proportional to 108,503.88, 162,839.16 and 48,550.92

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Solution

The fourth proportional to 108,503.88, 162,839.16 and 48,550.92 is: 72,863.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,503.88 : 162,839.16 = 48,550.92 : x
  2. Step 2: Convert to fraction form
    108,503.88/162,839.16 = 48,550.92/x
  3. Step 3: Cross multiply
    108,503.88x = 162,839.16 × 48,550.92
  4. Step 4: Simplify right side
    108,503.88x = 7,905,991,030.03
  5. Step 5: Solve for x
    x = 7,905,991,030.03/108,503.88
  6. Step 6: Final answer
    x = 72,863.67

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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.