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Finding the Fourth Proportional to 94,309.92, 130,148.56 and 51,289.82

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Solution

The fourth proportional to 94,309.92, 130,148.56 and 51,289.82 is: 70,780.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,309.92 : 130,148.56 = 51,289.82 : x
  2. Step 2: Convert to fraction form
    94,309.92/130,148.56 = 51,289.82/x
  3. Step 3: Cross multiply
    94,309.92x = 130,148.56 × 51,289.82
  4. Step 4: Simplify right side
    94,309.92x = 6,675,295,895.30
  5. Step 5: Solve for x
    x = 6,675,295,895.30/94,309.92
  6. Step 6: Final answer
    x = 70,780.42

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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.