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Finding the Fourth Proportional to 374,434.56, 561,358.08 and 187,568.64

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Solution

The fourth proportional to 374,434.56, 561,358.08 and 187,568.64 is: 281,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,434.56 : 561,358.08 = 187,568.64 : x
  2. Step 2: Convert to fraction form
    374,434.56/561,358.08 = 187,568.64/x
  3. Step 3: Cross multiply
    374,434.56x = 561,358.08 × 187,568.64
  4. Step 4: Simplify right side
    374,434.56x = 105,293,171,618.61
  5. Step 5: Solve for x
    x = 105,293,171,618.61/374,434.56
  6. Step 6: Final answer
    x = 281,205.80

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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.