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Finding the Fourth Proportional to 114,626.91, 172,064.87 and 96,939.89

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Solution

The fourth proportional to 114,626.91, 172,064.87 and 96,939.89 is: 145,515.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,626.91 : 172,064.87 = 96,939.89 : x
  2. Step 2: Convert to fraction form
    114,626.91/172,064.87 = 96,939.89/x
  3. Step 3: Cross multiply
    114,626.91x = 172,064.87 × 96,939.89
  4. Step 4: Simplify right side
    114,626.91x = 16,679,949,133.03
  5. Step 5: Solve for x
    x = 16,679,949,133.03/114,626.91
  6. Step 6: Final answer
    x = 145,515.13

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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.