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Finding the Fourth Proportional to 129,277.67, 193,748.04 and 66,044.50

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Solution

The fourth proportional to 129,277.67, 193,748.04 and 66,044.50 is: 98,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,277.67 : 193,748.04 = 66,044.50 : x
  2. Step 2: Convert to fraction form
    129,277.67/193,748.04 = 66,044.50/x
  3. Step 3: Cross multiply
    129,277.67x = 193,748.04 × 66,044.50
  4. Step 4: Simplify right side
    129,277.67x = 12,795,991,441.85
  5. Step 5: Solve for x
    x = 12,795,991,441.85/129,277.67
  6. Step 6: Final answer
    x = 98,980.68

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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.