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Finding the Fourth Proportional to 402,079.02, 603,118.89 and 121,596.54

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Solution

The fourth proportional to 402,079.02, 603,118.89 and 121,596.54 is: 182,394.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,079.02 : 603,118.89 = 121,596.54 : x
  2. Step 2: Convert to fraction form
    402,079.02/603,118.89 = 121,596.54/x
  3. Step 3: Cross multiply
    402,079.02x = 603,118.89 × 121,596.54
  4. Step 4: Simplify right side
    402,079.02x = 73,337,170,232.64
  5. Step 5: Solve for x
    x = 73,337,170,232.64/402,079.02
  6. Step 6: Final answer
    x = 182,394.92

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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.