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Finding the Fourth Proportional to 245,116.65, 367,675.26 and 76,637.87

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Solution

The fourth proportional to 245,116.65, 367,675.26 and 76,637.87 is: 114,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,116.65 : 367,675.26 = 76,637.87 : x
  2. Step 2: Convert to fraction form
    245,116.65/367,675.26 = 76,637.87/x
  3. Step 3: Cross multiply
    245,116.65x = 367,675.26 × 76,637.87
  4. Step 4: Simplify right side
    245,116.65x = 28,177,846,939.72
  5. Step 5: Solve for x
    x = 28,177,846,939.72/245,116.65
  6. Step 6: Final answer
    x = 114,956.89

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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.