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Finding the Fourth Proportional to 160,118.68, 240,173.16 and 66,622

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Solution

The fourth proportional to 160,118.68, 240,173.16 and 66,622 is: 99,930.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,118.68 : 240,173.16 = 66,622 : x
  2. Step 2: Convert to fraction form
    160,118.68/240,173.16 = 66,622/x
  3. Step 3: Cross multiply
    160,118.68x = 240,173.16 × 66,622
  4. Step 4: Simplify right side
    160,118.68x = 16,000,816,265.52
  5. Step 5: Solve for x
    x = 16,000,816,265.52/160,118.68
  6. Step 6: Final answer
    x = 99,930.98

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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.