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Finding the Fourth Proportional to 163,685.80, 245,429.87 and 63,826.84

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Solution

The fourth proportional to 163,685.80, 245,429.87 and 63,826.84 is: 95,701.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,685.80 : 245,429.87 = 63,826.84 : x
  2. Step 2: Convert to fraction form
    163,685.80/245,429.87 = 63,826.84/x
  3. Step 3: Cross multiply
    163,685.80x = 245,429.87 × 63,826.84
  4. Step 4: Simplify right side
    163,685.80x = 15,665,011,816.56
  5. Step 5: Solve for x
    x = 15,665,011,816.56/163,685.80
  6. Step 6: Final answer
    x = 95,701.72

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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.