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Finding the Fourth Proportional to 101,065.45, 151,434.15 and 63,558.40

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Solution

The fourth proportional to 101,065.45, 151,434.15 and 63,558.40 is: 95,234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,065.45 : 151,434.15 = 63,558.40 : x
  2. Step 2: Convert to fraction form
    101,065.45/151,434.15 = 63,558.40/x
  3. Step 3: Cross multiply
    101,065.45x = 151,434.15 × 63,558.40
  4. Step 4: Simplify right side
    101,065.45x = 9,624,912,279.36
  5. Step 5: Solve for x
    x = 9,624,912,279.36/101,065.45
  6. Step 6: Final answer
    x = 95,234.45

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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.