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Finding the Fourth Proportional to 96,776.76, 133,275.42 and 87,134.52

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Solution

The fourth proportional to 96,776.76, 133,275.42 and 87,134.52 is: 119,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,776.76 : 133,275.42 = 87,134.52 : x
  2. Step 2: Convert to fraction form
    96,776.76/133,275.42 = 87,134.52/x
  3. Step 3: Cross multiply
    96,776.76x = 133,275.42 × 87,134.52
  4. Step 4: Simplify right side
    96,776.76x = 11,612,889,749.50
  5. Step 5: Solve for x
    x = 11,612,889,749.50/96,776.76
  6. Step 6: Final answer
    x = 119,996.68

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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.