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Finding the Fourth Proportional to 166,253.20, 249,412.20 and 71,483.20

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Solution

The fourth proportional to 166,253.20, 249,412.20 and 71,483.20 is: 107,238.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,253.20 : 249,412.20 = 71,483.20 : x
  2. Step 2: Convert to fraction form
    166,253.20/249,412.20 = 71,483.20/x
  3. Step 3: Cross multiply
    166,253.20x = 249,412.20 × 71,483.20
  4. Step 4: Simplify right side
    166,253.20x = 17,828,782,175.04
  5. Step 5: Solve for x
    x = 17,828,782,175.04/166,253.20
  6. Step 6: Final answer
    x = 107,238.73

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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.