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Finding the Fourth Proportional to 356,684.15, 534,870.63 and 134,912.63

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Solution

The fourth proportional to 356,684.15, 534,870.63 and 134,912.63 is: 202,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,684.15 : 534,870.63 = 134,912.63 : x
  2. Step 2: Convert to fraction form
    356,684.15/534,870.63 = 134,912.63/x
  3. Step 3: Cross multiply
    356,684.15x = 534,870.63 × 134,912.63
  4. Step 4: Simplify right side
    356,684.15x = 72,160,800,728.70
  5. Step 5: Solve for x
    x = 72,160,800,728.70/356,684.15
  6. Step 6: Final answer
    x = 202,310.09

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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.