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Finding the Fourth Proportional to 117,838.24, 162,676.92 and 79,798.84

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Solution

The fourth proportional to 117,838.24, 162,676.92 and 79,798.84 is: 110,163.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,838.24 : 162,676.92 = 79,798.84 : x
  2. Step 2: Convert to fraction form
    117,838.24/162,676.92 = 79,798.84/x
  3. Step 3: Cross multiply
    117,838.24x = 162,676.92 × 79,798.84
  4. Step 4: Simplify right side
    117,838.24x = 12,981,429,510.77
  5. Step 5: Solve for x
    x = 12,981,429,510.77/117,838.24
  6. Step 6: Final answer
    x = 110,163.13

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1.5x scale

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.