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Finding the Fourth Proportional to 374,920.21, 561,674.13 and 185,158.54

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Solution

The fourth proportional to 374,920.21, 561,674.13 and 185,158.54 is: 277,389.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,920.21 : 561,674.13 = 185,158.54 : x
  2. Step 2: Convert to fraction form
    374,920.21/561,674.13 = 185,158.54/x
  3. Step 3: Cross multiply
    374,920.21x = 561,674.13 × 185,158.54
  4. Step 4: Simplify right side
    374,920.21x = 103,998,761,866.57
  5. Step 5: Solve for x
    x = 103,998,761,866.57/374,920.21
  6. Step 6: Final answer
    x = 277,389.05

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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.