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Finding the Fourth Proportional to 356,685.02, 534,872.01 and 134,913.50

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Solution

The fourth proportional to 356,685.02, 534,872.01 and 134,913.50 is: 202,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,685.02 : 534,872.01 = 134,913.50 : x
  2. Step 2: Convert to fraction form
    356,685.02/534,872.01 = 134,913.50/x
  3. Step 3: Cross multiply
    356,685.02x = 534,872.01 × 134,913.50
  4. Step 4: Simplify right side
    356,685.02x = 72,161,454,921.14
  5. Step 5: Solve for x
    x = 72,161,454,921.14/356,685.02
  6. Step 6: Final answer
    x = 202,311.43

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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.