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Finding the Fourth Proportional to 73,776.65, 110,637.81 and 26,378.96

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Solution

The fourth proportional to 73,776.65, 110,637.81 and 26,378.96 is: 39,558.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,776.65 : 110,637.81 = 26,378.96 : x
  2. Step 2: Convert to fraction form
    73,776.65/110,637.81 = 26,378.96/x
  3. Step 3: Cross multiply
    73,776.65x = 110,637.81 × 26,378.96
  4. Step 4: Simplify right side
    73,776.65x = 2,918,509,811.29
  5. Step 5: Solve for x
    x = 2,918,509,811.29/73,776.65
  6. Step 6: Final answer
    x = 39,558.72

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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.