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Finding the Fourth Proportional to 185,730.58, 278,592.62 and 45,490.42

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Solution

The fourth proportional to 185,730.58, 278,592.62 and 45,490.42 is: 68,234.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,730.58 : 278,592.62 = 45,490.42 : x
  2. Step 2: Convert to fraction form
    185,730.58/278,592.62 = 45,490.42/x
  3. Step 3: Cross multiply
    185,730.58x = 278,592.62 × 45,490.42
  4. Step 4: Simplify right side
    185,730.58x = 12,673,293,899.74
  5. Step 5: Solve for x
    x = 12,673,293,899.74/185,730.58
  6. Step 6: Final answer
    x = 68,234.83

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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.