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Finding the Fourth Proportional to 131,430.90, 197,174.43 and 48,324.90

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Solution

The fourth proportional to 131,430.90, 197,174.43 and 48,324.90 is: 72,497.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,430.90 : 197,174.43 = 48,324.90 : x
  2. Step 2: Convert to fraction form
    131,430.90/197,174.43 = 48,324.90/x
  3. Step 3: Cross multiply
    131,430.90x = 197,174.43 × 48,324.90
  4. Step 4: Simplify right side
    131,430.90x = 9,528,434,612.31
  5. Step 5: Solve for x
    x = 9,528,434,612.31/131,430.90
  6. Step 6: Final answer
    x = 72,497.67

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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.