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Finding the Fourth Proportional to 216,518.52, 298,833.58 and 125,902.52

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Solution

The fourth proportional to 216,518.52, 298,833.58 and 125,902.52 is: 173,767.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,518.52 : 298,833.58 = 125,902.52 : x
  2. Step 2: Convert to fraction form
    216,518.52/298,833.58 = 125,902.52/x
  3. Step 3: Cross multiply
    216,518.52x = 298,833.58 × 125,902.52
  4. Step 4: Simplify right side
    216,518.52x = 37,623,900,782.62
  5. Step 5: Solve for x
    x = 37,623,900,782.62/216,518.52
  6. Step 6: Final answer
    x = 173,767.59

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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.