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Finding the Fourth Proportional to 166,325.21, 249,435.51 and 53,979.47

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Solution

The fourth proportional to 166,325.21, 249,435.51 and 53,979.47 is: 80,952.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,325.21 : 249,435.51 = 53,979.47 : x
  2. Step 2: Convert to fraction form
    166,325.21/249,435.51 = 53,979.47/x
  3. Step 3: Cross multiply
    166,325.21x = 249,435.51 × 53,979.47
  4. Step 4: Simplify right side
    166,325.21x = 13,464,395,381.80
  5. Step 5: Solve for x
    x = 13,464,395,381.80/166,325.21
  6. Step 6: Final answer
    x = 80,952.22

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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.