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Finding the Fourth Proportional to 318,383.01, 439,357.77 and 175,141.80

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Solution

The fourth proportional to 318,383.01, 439,357.77 and 175,141.80 is: 241,689.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,383.01 : 439,357.77 = 175,141.80 : x
  2. Step 2: Convert to fraction form
    318,383.01/439,357.77 = 175,141.80/x
  3. Step 3: Cross multiply
    318,383.01x = 439,357.77 × 175,141.80
  4. Step 4: Simplify right side
    318,383.01x = 76,949,910,681.79
  5. Step 5: Solve for x
    x = 76,949,910,681.79/318,383.01
  6. Step 6: Final answer
    x = 241,689.75

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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.