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Finding the Fourth Proportional to 172,311.96, 237,624.66 and 111,860.04

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Solution

The fourth proportional to 172,311.96, 237,624.66 and 111,860.04 is: 154,259.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,311.96 : 237,624.66 = 111,860.04 : x
  2. Step 2: Convert to fraction form
    172,311.96/237,624.66 = 111,860.04/x
  3. Step 3: Cross multiply
    172,311.96x = 237,624.66 × 111,860.04
  4. Step 4: Simplify right side
    172,311.96x = 26,580,703,972.59
  5. Step 5: Solve for x
    x = 26,580,703,972.59/172,311.96
  6. Step 6: Final answer
    x = 154,259.19

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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.