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Finding the Fourth Proportional to 159,098.94, 219,556.50 and 87,483.60

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Solution

The fourth proportional to 159,098.94, 219,556.50 and 87,483.60 is: 120,727.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,098.94 : 219,556.50 = 87,483.60 : x
  2. Step 2: Convert to fraction form
    159,098.94/219,556.50 = 87,483.60/x
  3. Step 3: Cross multiply
    159,098.94x = 219,556.50 × 87,483.60
  4. Step 4: Simplify right side
    159,098.94x = 19,207,593,846.74
  5. Step 5: Solve for x
    x = 19,207,593,846.74/159,098.94
  6. Step 6: Final answer
    x = 120,727.35

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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.