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Finding the Fourth Proportional to 219,788.91, 303,315.30 and 124,293.69

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Solution

The fourth proportional to 219,788.91, 303,315.30 and 124,293.69 is: 171,529.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,788.91 : 303,315.30 = 124,293.69 : x
  2. Step 2: Convert to fraction form
    219,788.91/303,315.30 = 124,293.69/x
  3. Step 3: Cross multiply
    219,788.91x = 303,315.30 × 124,293.69
  4. Step 4: Simplify right side
    219,788.91x = 37,700,177,870.46
  5. Step 5: Solve for x
    x = 37,700,177,870.46/219,788.91
  6. Step 6: Final answer
    x = 171,529.03

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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.