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Finding the Fourth Proportional to 144,535.80, 216,729 and 63,449.64

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Solution

The fourth proportional to 144,535.80, 216,729 and 63,449.64 is: 95,141.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,535.80 : 216,729 = 63,449.64 : x
  2. Step 2: Convert to fraction form
    144,535.80/216,729 = 63,449.64/x
  3. Step 3: Cross multiply
    144,535.80x = 216,729 × 63,449.64
  4. Step 4: Simplify right side
    144,535.80x = 13,751,377,027.56
  5. Step 5: Solve for x
    x = 13,751,377,027.56/144,535.80
  6. Step 6: Final answer
    x = 95,141.67

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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.