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Finding the Fourth Proportional to 76,101.80, 114,152.70 and 73,914.80

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Solution

The fourth proportional to 76,101.80, 114,152.70 and 73,914.80 is: 110,872.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,101.80 : 114,152.70 = 73,914.80 : x
  2. Step 2: Convert to fraction form
    76,101.80/114,152.70 = 73,914.80/x
  3. Step 3: Cross multiply
    76,101.80x = 114,152.70 × 73,914.80
  4. Step 4: Simplify right side
    76,101.80x = 8,437,573,989.96
  5. Step 5: Solve for x
    x = 8,437,573,989.96/76,101.80
  6. Step 6: Final answer
    x = 110,872.20

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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.