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Finding the Fourth Proportional to 368,423.40, 552,635.10 and 131,773.80

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Solution

The fourth proportional to 368,423.40, 552,635.10 and 131,773.80 is: 197,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,423.40 : 552,635.10 = 131,773.80 : x
  2. Step 2: Convert to fraction form
    368,423.40/552,635.10 = 131,773.80/x
  3. Step 3: Cross multiply
    368,423.40x = 552,635.10 × 131,773.80
  4. Step 4: Simplify right side
    368,423.40x = 72,822,827,140.38
  5. Step 5: Solve for x
    x = 72,822,827,140.38/368,423.40
  6. Step 6: Final answer
    x = 197,660.70

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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.