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Finding the Fourth Proportional to 114,687.89, 158,263.87 and 63,703.90

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Solution

The fourth proportional to 114,687.89, 158,263.87 and 63,703.90 is: 87,908.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,687.89 : 158,263.87 = 63,703.90 : x
  2. Step 2: Convert to fraction form
    114,687.89/158,263.87 = 63,703.90/x
  3. Step 3: Cross multiply
    114,687.89x = 158,263.87 × 63,703.90
  4. Step 4: Simplify right side
    114,687.89x = 10,082,025,748.09
  5. Step 5: Solve for x
    x = 10,082,025,748.09/114,687.89
  6. Step 6: Final answer
    x = 87,908.37

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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.