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Finding the Fourth Proportional to 395,939.85, 593,903.59 and 96,419.92

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Solution

The fourth proportional to 395,939.85, 593,903.59 and 96,419.92 is: 144,628.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,939.85 : 593,903.59 = 96,419.92 : x
  2. Step 2: Convert to fraction form
    395,939.85/593,903.59 = 96,419.92/x
  3. Step 3: Cross multiply
    395,939.85x = 593,903.59 × 96,419.92
  4. Step 4: Simplify right side
    395,939.85x = 57,264,136,565.64
  5. Step 5: Solve for x
    x = 57,264,136,565.64/395,939.85
  6. Step 6: Final answer
    x = 144,628.38

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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.