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Finding the Fourth Proportional to 115,149.72, 172,747.89 and 48,590.01

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Solution

The fourth proportional to 115,149.72, 172,747.89 and 48,590.01 is: 72,894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,149.72 : 172,747.89 = 48,590.01 : x
  2. Step 2: Convert to fraction form
    115,149.72/172,747.89 = 48,590.01/x
  3. Step 3: Cross multiply
    115,149.72x = 172,747.89 × 48,590.01
  4. Step 4: Simplify right side
    115,149.72x = 8,393,821,702.58
  5. Step 5: Solve for x
    x = 8,393,821,702.58/115,149.72
  6. Step 6: Final answer
    x = 72,894.85

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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.