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Finding the Fourth Proportional to 166,681.80, 250,022.70 and 165,515.40

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Solution

The fourth proportional to 166,681.80, 250,022.70 and 165,515.40 is: 248,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,681.80 : 250,022.70 = 165,515.40 : x
  2. Step 2: Convert to fraction form
    166,681.80/250,022.70 = 165,515.40/x
  3. Step 3: Cross multiply
    166,681.80x = 250,022.70 × 165,515.40
  4. Step 4: Simplify right side
    166,681.80x = 41,382,607,199.58
  5. Step 5: Solve for x
    x = 41,382,607,199.58/166,681.80
  6. Step 6: Final answer
    x = 248,273.10

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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.