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Finding the Fourth Proportional to 166,628.40, 249,942.60 and 96,687.60

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Solution

The fourth proportional to 166,628.40, 249,942.60 and 96,687.60 is: 145,031.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,628.40 : 249,942.60 = 96,687.60 : x
  2. Step 2: Convert to fraction form
    166,628.40/249,942.60 = 96,687.60/x
  3. Step 3: Cross multiply
    166,628.40x = 249,942.60 × 96,687.60
  4. Step 4: Simplify right side
    166,628.40x = 24,166,350,131.76
  5. Step 5: Solve for x
    x = 24,166,350,131.76/166,628.40
  6. Step 6: Final answer
    x = 145,031.40

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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.