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Finding the Fourth Proportional to 166,522.90, 249,786.69 and 54,203.74

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Solution

The fourth proportional to 166,522.90, 249,786.69 and 54,203.74 is: 81,306.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,522.90 : 249,786.69 = 54,203.74 : x
  2. Step 2: Convert to fraction form
    166,522.90/249,786.69 = 54,203.74/x
  3. Step 3: Cross multiply
    166,522.90x = 249,786.69 × 54,203.74
  4. Step 4: Simplify right side
    166,522.90x = 13,539,372,800.22
  5. Step 5: Solve for x
    x = 13,539,372,800.22/166,522.90
  6. Step 6: Final answer
    x = 81,306.37

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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.