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Finding the Fourth Proportional to 168,497.10, 252,745.65 and 155,666.70

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Solution

The fourth proportional to 168,497.10, 252,745.65 and 155,666.70 is: 233,500.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,497.10 : 252,745.65 = 155,666.70 : x
  2. Step 2: Convert to fraction form
    168,497.10/252,745.65 = 155,666.70/x
  3. Step 3: Cross multiply
    168,497.10x = 252,745.65 × 155,666.70
  4. Step 4: Simplify right side
    168,497.10x = 39,344,081,274.86
  5. Step 5: Solve for x
    x = 39,344,081,274.86/168,497.10
  6. Step 6: Final answer
    x = 233,500.05

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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.