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Finding the Fourth Proportional to 395,328.91, 593,051.15 and 114,809.71

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Solution

The fourth proportional to 395,328.91, 593,051.15 and 114,809.71 is: 172,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,328.91 : 593,051.15 = 114,809.71 : x
  2. Step 2: Convert to fraction form
    395,328.91/593,051.15 = 114,809.71/x
  3. Step 3: Cross multiply
    395,328.91x = 593,051.15 × 114,809.71
  4. Step 4: Simplify right side
    395,328.91x = 68,088,030,546.67
  5. Step 5: Solve for x
    x = 68,088,030,546.67/395,328.91
  6. Step 6: Final answer
    x = 172,231.35

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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.