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Finding the Fourth Proportional to 368,414.17, 552,621.27 and 131,742.49

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Solution

The fourth proportional to 368,414.17, 552,621.27 and 131,742.49 is: 197,613.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,414.17 : 552,621.27 = 131,742.49 : x
  2. Step 2: Convert to fraction form
    368,414.17/552,621.27 = 131,742.49/x
  3. Step 3: Cross multiply
    368,414.17x = 552,621.27 × 131,742.49
  4. Step 4: Simplify right side
    368,414.17x = 72,803,702,136.76
  5. Step 5: Solve for x
    x = 72,803,702,136.76/368,414.17
  6. Step 6: Final answer
    x = 197,613.74

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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.