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Finding the Fourth Proportional to 395,431.04, 593,233.68 and 114,970.16

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Solution

The fourth proportional to 395,431.04, 593,233.68 and 114,970.16 is: 172,480.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,431.04 : 593,233.68 = 114,970.16 : x
  2. Step 2: Convert to fraction form
    395,431.04/593,233.68 = 114,970.16/x
  3. Step 3: Cross multiply
    395,431.04x = 593,233.68 × 114,970.16
  4. Step 4: Simplify right side
    395,431.04x = 68,204,171,106.99
  5. Step 5: Solve for x
    x = 68,204,171,106.99/395,431.04
  6. Step 6: Final answer
    x = 172,480.57

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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.