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Finding the Fourth Proportional to 166,649.48, 249,723.66 and 66,710.60

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Solution

The fourth proportional to 166,649.48, 249,723.66 and 66,710.60 is: 99,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,649.48 : 249,723.66 = 66,710.60 : x
  2. Step 2: Convert to fraction form
    166,649.48/249,723.66 = 66,710.60/x
  3. Step 3: Cross multiply
    166,649.48x = 249,723.66 × 66,710.60
  4. Step 4: Simplify right side
    166,649.48x = 16,659,215,192.80
  5. Step 5: Solve for x
    x = 16,659,215,192.80/166,649.48
  6. Step 6: Final answer
    x = 99,965.60

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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.