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Finding the Fourth Proportional to 204,561.60, 306,554.40 and 162,513.60

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Solution

The fourth proportional to 204,561.60, 306,554.40 and 162,513.60 is: 243,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,561.60 : 306,554.40 = 162,513.60 : x
  2. Step 2: Convert to fraction form
    204,561.60/306,554.40 = 162,513.60/x
  3. Step 3: Cross multiply
    204,561.60x = 306,554.40 × 162,513.60
  4. Step 4: Simplify right side
    204,561.60x = 49,819,259,139.84
  5. Step 5: Solve for x
    x = 49,819,259,139.84/204,561.60
  6. Step 6: Final answer
    x = 243,541.60

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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.