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Finding the Fourth Proportional to 368,994.84, 553,540.50 and 132,363.96

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Solution

The fourth proportional to 368,994.84, 553,540.50 and 132,363.96 is: 198,563.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,994.84 : 553,540.50 = 132,363.96 : x
  2. Step 2: Convert to fraction form
    368,994.84/553,540.50 = 132,363.96/x
  3. Step 3: Cross multiply
    368,994.84x = 553,540.50 × 132,363.96
  4. Step 4: Simplify right side
    368,994.84x = 73,268,812,600.38
  5. Step 5: Solve for x
    x = 73,268,812,600.38/368,994.84
  6. Step 6: Final answer
    x = 198,563.24

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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.