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Finding the Fourth Proportional to 245,632.20, 368,232.30 and 166,489.80

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Solution

The fourth proportional to 245,632.20, 368,232.30 and 166,489.80 is: 249,588.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,632.20 : 368,232.30 = 166,489.80 : x
  2. Step 2: Convert to fraction form
    245,632.20/368,232.30 = 166,489.80/x
  3. Step 3: Cross multiply
    245,632.20x = 368,232.30 × 166,489.80
  4. Step 4: Simplify right side
    245,632.20x = 61,306,921,980.54
  5. Step 5: Solve for x
    x = 61,306,921,980.54/245,632.20
  6. Step 6: Final answer
    x = 249,588.29

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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.