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Finding the Fourth Proportional to 374,056.79, 516,174.53 and 204,290.91

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Solution

The fourth proportional to 374,056.79, 516,174.53 and 204,290.91 is: 281,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,056.79 : 516,174.53 = 204,290.91 : x
  2. Step 2: Convert to fraction form
    374,056.79/516,174.53 = 204,290.91/x
  3. Step 3: Cross multiply
    374,056.79x = 516,174.53 × 204,290.91
  4. Step 4: Simplify right side
    374,056.79x = 105,449,763,431.07
  5. Step 5: Solve for x
    x = 105,449,763,431.07/374,056.79
  6. Step 6: Final answer
    x = 281,908.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.