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Finding the Fourth Proportional to 105,554.52, 158,332.86 and 26,668.86

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Solution

The fourth proportional to 105,554.52, 158,332.86 and 26,668.86 is: 40,003.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,554.52 : 158,332.86 = 26,668.86 : x
  2. Step 2: Convert to fraction form
    105,554.52/158,332.86 = 26,668.86/x
  3. Step 3: Cross multiply
    105,554.52x = 158,332.86 × 26,668.86
  4. Step 4: Simplify right side
    105,554.52x = 4,222,556,876.74
  5. Step 5: Solve for x
    x = 4,222,556,876.74/105,554.52
  6. Step 6: Final answer
    x = 40,003.56

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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.