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Finding the Fourth Proportional to 80,590.96, 111,209 and 46,601.65

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Solution

The fourth proportional to 80,590.96, 111,209 and 46,601.65 is: 64,306.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,590.96 : 111,209 = 46,601.65 : x
  2. Step 2: Convert to fraction form
    80,590.96/111,209 = 46,601.65/x
  3. Step 3: Cross multiply
    80,590.96x = 111,209 × 46,601.65
  4. Step 4: Simplify right side
    80,590.96x = 5,182,522,894.85
  5. Step 5: Solve for x
    x = 5,182,522,894.85/80,590.96
  6. Step 6: Final answer
    x = 64,306.50

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1.5x scale

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.