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Finding the Fourth Proportional to 374,086.84, 561,209.08 and 121,347.60

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Solution

The fourth proportional to 374,086.84, 561,209.08 and 121,347.60 is: 182,046.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,086.84 : 561,209.08 = 121,347.60 : x
  2. Step 2: Convert to fraction form
    374,086.84/561,209.08 = 121,347.60/x
  3. Step 3: Cross multiply
    374,086.84x = 561,209.08 × 121,347.60
  4. Step 4: Simplify right side
    374,086.84x = 68,101,374,956.21
  5. Step 5: Solve for x
    x = 68,101,374,956.21/374,086.84
  6. Step 6: Final answer
    x = 182,046.97

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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.