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Finding the Fourth Proportional to 76,110.80, 114,166.20 and 75,673.40

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Solution

The fourth proportional to 76,110.80, 114,166.20 and 75,673.40 is: 113,510.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,110.80 : 114,166.20 = 75,673.40 : x
  2. Step 2: Convert to fraction form
    76,110.80/114,166.20 = 75,673.40/x
  3. Step 3: Cross multiply
    76,110.80x = 114,166.20 × 75,673.40
  4. Step 4: Simplify right side
    76,110.80x = 8,639,344,519.08
  5. Step 5: Solve for x
    x = 8,639,344,519.08/76,110.80
  6. Step 6: Final answer
    x = 113,510.10

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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.