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Finding the Fourth Proportional to 217,866.60, 326,799.90 and 162,570.60

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Solution

The fourth proportional to 217,866.60, 326,799.90 and 162,570.60 is: 243,855.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,866.60 : 326,799.90 = 162,570.60 : x
  2. Step 2: Convert to fraction form
    217,866.60/326,799.90 = 162,570.60/x
  3. Step 3: Cross multiply
    217,866.60x = 326,799.90 × 162,570.60
  4. Step 4: Simplify right side
    217,866.60x = 53,128,055,822.94
  5. Step 5: Solve for x
    x = 53,128,055,822.94/217,866.60
  6. Step 6: Final answer
    x = 243,855.90

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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.