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Finding the Fourth Proportional to 97,380.50, 134,385.10 and 52,668.50

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Solution

The fourth proportional to 97,380.50, 134,385.10 and 52,668.50 is: 72,682.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,380.50 : 134,385.10 = 52,668.50 : x
  2. Step 2: Convert to fraction form
    97,380.50/134,385.10 = 52,668.50/x
  3. Step 3: Cross multiply
    97,380.50x = 134,385.10 × 52,668.50
  4. Step 4: Simplify right side
    97,380.50x = 7,077,861,639.35
  5. Step 5: Solve for x
    x = 7,077,861,639.35/97,380.50
  6. Step 6: Final answer
    x = 72,682.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.