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Finding the Fourth Proportional to 101,318.37, 151,895.53 and 42,198.29

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Solution

The fourth proportional to 101,318.37, 151,895.53 and 42,198.29 is: 63,263.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,318.37 : 151,895.53 = 42,198.29 : x
  2. Step 2: Convert to fraction form
    101,318.37/151,895.53 = 42,198.29/x
  3. Step 3: Cross multiply
    101,318.37x = 151,895.53 × 42,198.29
  4. Step 4: Simplify right side
    101,318.37x = 6,409,731,898.89
  5. Step 5: Solve for x
    x = 6,409,731,898.89/101,318.37
  6. Step 6: Final answer
    x = 63,263.27

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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.