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Finding the Fourth Proportional to 115,059.67, 172,651.51 and 48,545.89

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Solution

The fourth proportional to 115,059.67, 172,651.51 and 48,545.89 is: 72,844.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,059.67 : 172,651.51 = 48,545.89 : x
  2. Step 2: Convert to fraction form
    115,059.67/172,651.51 = 48,545.89/x
  3. Step 3: Cross multiply
    115,059.67x = 172,651.51 × 48,545.89
  4. Step 4: Simplify right side
    115,059.67x = 8,381,520,841.85
  5. Step 5: Solve for x
    x = 8,381,520,841.85/115,059.67
  6. Step 6: Final answer
    x = 72,844.99

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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.