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Finding the Fourth Proportional to 131,662.70, 197,364.45 and 65,113.10

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Solution

The fourth proportional to 131,662.70, 197,364.45 and 65,113.10 is: 97,605.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,662.70 : 197,364.45 = 65,113.10 : x
  2. Step 2: Convert to fraction form
    131,662.70/197,364.45 = 65,113.10/x
  3. Step 3: Cross multiply
    131,662.70x = 197,364.45 × 65,113.10
  4. Step 4: Simplify right side
    131,662.70x = 12,851,011,169.30
  5. Step 5: Solve for x
    x = 12,851,011,169.30/131,662.70
  6. Step 6: Final answer
    x = 97,605.56

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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.