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Finding the Fourth Proportional to 216,921.30, 325,053.90 and 183,460.20

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Solution

The fourth proportional to 216,921.30, 325,053.90 and 183,460.20 is: 274,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,921.30 : 325,053.90 = 183,460.20 : x
  2. Step 2: Convert to fraction form
    216,921.30/325,053.90 = 183,460.20/x
  3. Step 3: Cross multiply
    216,921.30x = 325,053.90 × 183,460.20
  4. Step 4: Simplify right side
    216,921.30x = 59,634,453,504.78
  5. Step 5: Solve for x
    x = 59,634,453,504.78/216,921.30
  6. Step 6: Final answer
    x = 274,912.85

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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.