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Finding the Fourth Proportional to 361,725.93, 542,701.82 and 217,789.53

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Solution

The fourth proportional to 361,725.93, 542,701.82 and 217,789.53 is: 326,752.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,725.93 : 542,701.82 = 217,789.53 : x
  2. Step 2: Convert to fraction form
    361,725.93/542,701.82 = 217,789.53/x
  3. Step 3: Cross multiply
    361,725.93x = 542,701.82 × 217,789.53
  4. Step 4: Simplify right side
    361,725.93x = 118,194,774,852.42
  5. Step 5: Solve for x
    x = 118,194,774,852.42/361,725.93
  6. Step 6: Final answer
    x = 326,752.29

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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.