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Finding the Fourth Proportional to 166,590.52, 229,894.68 and 91,139.02

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Solution

The fourth proportional to 166,590.52, 229,894.68 and 91,139.02 is: 125,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,590.52 : 229,894.68 = 91,139.02 : x
  2. Step 2: Convert to fraction form
    166,590.52/229,894.68 = 91,139.02/x
  3. Step 3: Cross multiply
    166,590.52x = 229,894.68 × 91,139.02
  4. Step 4: Simplify right side
    166,590.52x = 20,952,375,838.41
  5. Step 5: Solve for x
    x = 20,952,375,838.41/166,590.52
  6. Step 6: Final answer
    x = 125,771.72

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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.