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Finding the Fourth Proportional to 166,321.20, 249,481.80 and 147,950.40

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Solution

The fourth proportional to 166,321.20, 249,481.80 and 147,950.40 is: 221,925.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,321.20 : 249,481.80 = 147,950.40 : x
  2. Step 2: Convert to fraction form
    166,321.20/249,481.80 = 147,950.40/x
  3. Step 3: Cross multiply
    166,321.20x = 249,481.80 × 147,950.40
  4. Step 4: Simplify right side
    166,321.20x = 36,910,932,102.72
  5. Step 5: Solve for x
    x = 36,910,932,102.72/166,321.20
  6. Step 6: Final answer
    x = 221,925.60

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1.5x scale

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.