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Finding the Fourth Proportional to 335,167.91, 502,078.72 and 155,000.80

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Solution

The fourth proportional to 335,167.91, 502,078.72 and 155,000.80 is: 232,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,167.91 : 502,078.72 = 155,000.80 : x
  2. Step 2: Convert to fraction form
    335,167.91/502,078.72 = 155,000.80/x
  3. Step 3: Cross multiply
    335,167.91x = 502,078.72 × 155,000.80
  4. Step 4: Simplify right side
    335,167.91x = 77,822,603,262.98
  5. Step 5: Solve for x
    x = 77,822,603,262.98/335,167.91
  6. Step 6: Final answer
    x = 232,189.90

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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.