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Finding the Fourth Proportional to 270,371.04, 405,652.95 and 120,597.90

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Solution

The fourth proportional to 270,371.04, 405,652.95 and 120,597.90 is: 180,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,371.04 : 405,652.95 = 120,597.90 : x
  2. Step 2: Convert to fraction form
    270,371.04/405,652.95 = 120,597.90/x
  3. Step 3: Cross multiply
    270,371.04x = 405,652.95 × 120,597.90
  4. Step 4: Simplify right side
    270,371.04x = 48,920,893,898.81
  5. Step 5: Solve for x
    x = 48,920,893,898.81/270,371.04
  6. Step 6: Final answer
    x = 180,939.84

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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.