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Finding the Fourth Proportional to 83,173.29, 124,909.58 and 76,497.67

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Solution

The fourth proportional to 83,173.29, 124,909.58 and 76,497.67 is: 114,884.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,173.29 : 124,909.58 = 76,497.67 : x
  2. Step 2: Convert to fraction form
    83,173.29/124,909.58 = 76,497.67/x
  3. Step 3: Cross multiply
    83,173.29x = 124,909.58 × 76,497.67
  4. Step 4: Simplify right side
    83,173.29x = 9,555,291,830.68
  5. Step 5: Solve for x
    x = 9,555,291,830.68/83,173.29
  6. Step 6: Final answer
    x = 114,884.14

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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.