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Finding the Fourth Proportional to 574,139.79, 861,302.39 and 174,686.49

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Solution

The fourth proportional to 574,139.79, 861,302.39 and 174,686.49 is: 262,057.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,139.79 : 861,302.39 = 174,686.49 : x
  2. Step 2: Convert to fraction form
    574,139.79/861,302.39 = 174,686.49/x
  3. Step 3: Cross multiply
    574,139.79x = 861,302.39 × 174,686.49
  4. Step 4: Simplify right side
    574,139.79x = 150,457,890,464.28
  5. Step 5: Solve for x
    x = 150,457,890,464.28/574,139.79
  6. Step 6: Final answer
    x = 262,057.94

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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.