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Finding the Fourth Proportional to 105,673.66, 158,579.19 and 45,760.65

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Solution

The fourth proportional to 105,673.66, 158,579.19 and 45,760.65 is: 68,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,673.66 : 158,579.19 = 45,760.65 : x
  2. Step 2: Convert to fraction form
    105,673.66/158,579.19 = 45,760.65/x
  3. Step 3: Cross multiply
    105,673.66x = 158,579.19 × 45,760.65
  4. Step 4: Simplify right side
    105,673.66x = 7,256,686,344.90
  5. Step 5: Solve for x
    x = 7,256,686,344.90/105,673.66
  6. Step 6: Final answer
    x = 68,670.72

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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.