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Finding the Fourth Proportional to 152,687.94, 210,709.60 and 84,704.91

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Solution

The fourth proportional to 152,687.94, 210,709.60 and 84,704.91 is: 116,892.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,687.94 : 210,709.60 = 84,704.91 : x
  2. Step 2: Convert to fraction form
    152,687.94/210,709.60 = 84,704.91/x
  3. Step 3: Cross multiply
    152,687.94x = 210,709.60 × 84,704.91
  4. Step 4: Simplify right side
    152,687.94x = 17,848,138,222.84
  5. Step 5: Solve for x
    x = 17,848,138,222.84/152,687.94
  6. Step 6: Final answer
    x = 116,892.91

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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.