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Finding the Fourth Proportional to 166,647.20, 249,970.80 and 73,152.95

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Solution

The fourth proportional to 166,647.20, 249,970.80 and 73,152.95 is: 109,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,647.20 : 249,970.80 = 73,152.95 : x
  2. Step 2: Convert to fraction form
    166,647.20/249,970.80 = 73,152.95/x
  3. Step 3: Cross multiply
    166,647.20x = 249,970.80 × 73,152.95
  4. Step 4: Simplify right side
    166,647.20x = 18,286,101,433.86
  5. Step 5: Solve for x
    x = 18,286,101,433.86/166,647.20
  6. Step 6: Final answer
    x = 109,729.43

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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.