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Finding the Fourth Proportional to 173,765.40, 260,793.90 and 85,094.70

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Solution

The fourth proportional to 173,765.40, 260,793.90 and 85,094.70 is: 127,713.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,765.40 : 260,793.90 = 85,094.70 : x
  2. Step 2: Convert to fraction form
    173,765.40/260,793.90 = 85,094.70/x
  3. Step 3: Cross multiply
    173,765.40x = 260,793.90 × 85,094.70
  4. Step 4: Simplify right side
    173,765.40x = 22,192,178,682.33
  5. Step 5: Solve for x
    x = 22,192,178,682.33/173,765.40
  6. Step 6: Final answer
    x = 127,713.45

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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.