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Finding the Fourth Proportional to 374,072.61, 561,187.68 and 121,333.32

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Solution

The fourth proportional to 374,072.61, 561,187.68 and 121,333.32 is: 182,025.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,072.61 : 561,187.68 = 121,333.32 : x
  2. Step 2: Convert to fraction form
    374,072.61/561,187.68 = 121,333.32/x
  3. Step 3: Cross multiply
    374,072.61x = 561,187.68 × 121,333.32
  4. Step 4: Simplify right side
    374,072.61x = 68,090,764,357.50
  5. Step 5: Solve for x
    x = 68,090,764,357.50/374,072.61
  6. Step 6: Final answer
    x = 182,025.53

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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.