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Finding the Fourth Proportional to 131,426.60, 197,168.70 and 64,898.60

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Solution

The fourth proportional to 131,426.60, 197,168.70 and 64,898.60 is: 97,362.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.60 : 197,168.70 = 64,898.60 : x
  2. Step 2: Convert to fraction form
    131,426.60/197,168.70 = 64,898.60/x
  3. Step 3: Cross multiply
    131,426.60x = 197,168.70 × 64,898.60
  4. Step 4: Simplify right side
    131,426.60x = 12,795,972,593.82
  5. Step 5: Solve for x
    x = 12,795,972,593.82/131,426.60
  6. Step 6: Final answer
    x = 97,362.12

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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.