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Finding the Fourth Proportional to 571,540.70, 856,774.65 and 192,196.19

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Solution

The fourth proportional to 571,540.70, 856,774.65 and 192,196.19 is: 288,113.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,540.70 : 856,774.65 = 192,196.19 : x
  2. Step 2: Convert to fraction form
    571,540.70/856,774.65 = 192,196.19/x
  3. Step 3: Cross multiply
    571,540.70x = 856,774.65 × 192,196.19
  4. Step 4: Simplify right side
    571,540.70x = 164,668,823,418.58
  5. Step 5: Solve for x
    x = 164,668,823,418.58/571,540.70
  6. Step 6: Final answer
    x = 288,113.91

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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.