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Finding the Fourth Proportional to 166,690.60, 250,035.90 and 42,031.60

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Solution

The fourth proportional to 166,690.60, 250,035.90 and 42,031.60 is: 63,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,690.60 : 250,035.90 = 42,031.60 : x
  2. Step 2: Convert to fraction form
    166,690.60/250,035.90 = 42,031.60/x
  3. Step 3: Cross multiply
    166,690.60x = 250,035.90 × 42,031.60
  4. Step 4: Simplify right side
    166,690.60x = 10,509,408,934.44
  5. Step 5: Solve for x
    x = 10,509,408,934.44/166,690.60
  6. Step 6: Final answer
    x = 63,047.40

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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.