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Finding the Fourth Proportional to 118,063.15, 162,927.20 and 67,075.96

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Solution

The fourth proportional to 118,063.15, 162,927.20 and 67,075.96 is: 92,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,063.15 : 162,927.20 = 67,075.96 : x
  2. Step 2: Convert to fraction form
    118,063.15/162,927.20 = 67,075.96/x
  3. Step 3: Cross multiply
    118,063.15x = 162,927.20 × 67,075.96
  4. Step 4: Simplify right side
    118,063.15x = 10,928,498,995.53
  5. Step 5: Solve for x
    x = 10,928,498,995.53/118,063.15
  6. Step 6: Final answer
    x = 92,564.86

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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.