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Finding the Fourth Proportional to 98,514.55, 135,953.43 and 58,262.82

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Solution

The fourth proportional to 98,514.55, 135,953.43 and 58,262.82 is: 80,404.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,514.55 : 135,953.43 = 58,262.82 : x
  2. Step 2: Convert to fraction form
    98,514.55/135,953.43 = 58,262.82/x
  3. Step 3: Cross multiply
    98,514.55x = 135,953.43 × 58,262.82
  4. Step 4: Simplify right side
    98,514.55x = 7,921,030,220.47
  5. Step 5: Solve for x
    x = 7,921,030,220.47/98,514.55
  6. Step 6: Final answer
    x = 80,404.67

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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.