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Finding the Fourth Proportional to 190,052.10, 285,041.70 and 56,936.70

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Solution

The fourth proportional to 190,052.10, 285,041.70 and 56,936.70 is: 85,394.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,052.10 : 285,041.70 = 56,936.70 : x
  2. Step 2: Convert to fraction form
    190,052.10/285,041.70 = 56,936.70/x
  3. Step 3: Cross multiply
    190,052.10x = 285,041.70 × 56,936.70
  4. Step 4: Simplify right side
    190,052.10x = 16,229,333,760.39
  5. Step 5: Solve for x
    x = 16,229,333,760.39/190,052.10
  6. Step 6: Final answer
    x = 85,394.13

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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.