Home / 351,917.40-527,877.18-85,677.96

Finding the Fourth Proportional to 351,917.40, 527,877.18 and 85,677.96

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Solution

The fourth proportional to 351,917.40, 527,877.18 and 85,677.96 is: 128,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,917.40 : 527,877.18 = 85,677.96 : x
  2. Step 2: Convert to fraction form
    351,917.40/527,877.18 = 85,677.96/x
  3. Step 3: Cross multiply
    351,917.40x = 527,877.18 × 85,677.96
  4. Step 4: Simplify right side
    351,917.40x = 45,227,439,912.95
  5. Step 5: Solve for x
    x = 45,227,439,912.95/351,917.40
  6. Step 6: Final answer
    x = 128,517.20

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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.