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Finding the Fourth Proportional to 170,745.70, 255,535.35 and 156,748.90

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Solution

The fourth proportional to 170,745.70, 255,535.35 and 156,748.90 is: 234,587.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,745.70 : 255,535.35 = 156,748.90 : x
  2. Step 2: Convert to fraction form
    170,745.70/255,535.35 = 156,748.90/x
  3. Step 3: Cross multiply
    170,745.70x = 255,535.35 × 156,748.90
  4. Step 4: Simplify right side
    170,745.70x = 40,054,885,023.62
  5. Step 5: Solve for x
    x = 40,054,885,023.62/170,745.70
  6. Step 6: Final answer
    x = 234,587.96

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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.