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Finding the Fourth Proportional to 94,113.70, 129,877.12 and 51,674.96

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Solution

The fourth proportional to 94,113.70, 129,877.12 and 51,674.96 is: 71,311.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,113.70 : 129,877.12 = 51,674.96 : x
  2. Step 2: Convert to fraction form
    94,113.70/129,877.12 = 51,674.96/x
  3. Step 3: Cross multiply
    94,113.70x = 129,877.12 × 51,674.96
  4. Step 4: Simplify right side
    94,113.70x = 6,711,395,370.20
  5. Step 5: Solve for x
    x = 6,711,395,370.20/94,113.70
  6. Step 6: Final answer
    x = 71,311.57

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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.