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Finding the Fourth Proportional to 217,130.52, 325,214.58 and 166,840.44

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Solution

The fourth proportional to 217,130.52, 325,214.58 and 166,840.44 is: 249,890.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,130.52 : 325,214.58 = 166,840.44 : x
  2. Step 2: Convert to fraction form
    217,130.52/325,214.58 = 166,840.44/x
  3. Step 3: Cross multiply
    217,130.52x = 325,214.58 × 166,840.44
  4. Step 4: Simplify right side
    217,130.52x = 54,258,943,621.62
  5. Step 5: Solve for x
    x = 54,258,943,621.62/217,130.52
  6. Step 6: Final answer
    x = 249,890.91

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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.