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Finding the Fourth Proportional to 166,624.80, 249,742.80 and 66,735.60

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Solution

The fourth proportional to 166,624.80, 249,742.80 and 66,735.60 is: 100,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,624.80 : 249,742.80 = 66,735.60 : x
  2. Step 2: Convert to fraction form
    166,624.80/249,742.80 = 66,735.60/x
  3. Step 3: Cross multiply
    166,624.80x = 249,742.80 × 66,735.60
  4. Step 4: Simplify right side
    166,624.80x = 16,666,735,603.68
  5. Step 5: Solve for x
    x = 16,666,735,603.68/166,624.80
  6. Step 6: Final answer
    x = 100,025.54

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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.