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Finding the Fourth Proportional to 166,399.80, 249,698.52 and 61,292.52

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Solution

The fourth proportional to 166,399.80, 249,698.52 and 61,292.52 is: 91,975.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,399.80 : 249,698.52 = 61,292.52 : x
  2. Step 2: Convert to fraction form
    166,399.80/249,698.52 = 61,292.52/x
  3. Step 3: Cross multiply
    166,399.80x = 249,698.52 × 61,292.52
  4. Step 4: Simplify right side
    166,399.80x = 15,304,651,531.07
  5. Step 5: Solve for x
    x = 15,304,651,531.07/166,399.80
  6. Step 6: Final answer
    x = 91,975.18

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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.