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Finding the Fourth Proportional to 163,620.33, 245,469.99 and 56,988.69

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Solution

The fourth proportional to 163,620.33, 245,469.99 and 56,988.69 is: 85,496.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,620.33 : 245,469.99 = 56,988.69 : x
  2. Step 2: Convert to fraction form
    163,620.33/245,469.99 = 56,988.69/x
  3. Step 3: Cross multiply
    163,620.33x = 245,469.99 × 56,988.69
  4. Step 4: Simplify right side
    163,620.33x = 13,989,013,164.41
  5. Step 5: Solve for x
    x = 13,989,013,164.41/163,620.33
  6. Step 6: Final answer
    x = 85,496.79

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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.