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Finding the Fourth Proportional to 250,590.92, 345,815.52 and 137,416.04

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Solution

The fourth proportional to 250,590.92, 345,815.52 and 137,416.04 is: 189,634.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,590.92 : 345,815.52 = 137,416.04 : x
  2. Step 2: Convert to fraction form
    250,590.92/345,815.52 = 137,416.04/x
  3. Step 3: Cross multiply
    250,590.92x = 345,815.52 × 137,416.04
  4. Step 4: Simplify right side
    250,590.92x = 47,520,599,328.94
  5. Step 5: Solve for x
    x = 47,520,599,328.94/250,590.92
  6. Step 6: Final answer
    x = 189,634.16

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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.