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Finding the Fourth Proportional to 374,246.10, 561,369.15 and 108,015.30

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Solution

The fourth proportional to 374,246.10, 561,369.15 and 108,015.30 is: 162,022.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,246.10 : 561,369.15 = 108,015.30 : x
  2. Step 2: Convert to fraction form
    374,246.10/561,369.15 = 108,015.30/x
  3. Step 3: Cross multiply
    374,246.10x = 561,369.15 × 108,015.30
  4. Step 4: Simplify right side
    374,246.10x = 60,636,457,148.00
  5. Step 5: Solve for x
    x = 60,636,457,148.00/374,246.10
  6. Step 6: Final answer
    x = 162,022.95

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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.