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Finding the Fourth Proportional to 131,674.60, 197,285.10 and 61,409.80

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Solution

The fourth proportional to 131,674.60, 197,285.10 and 61,409.80 is: 92,008.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,674.60 : 197,285.10 = 61,409.80 : x
  2. Step 2: Convert to fraction form
    131,674.60/197,285.10 = 61,409.80/x
  3. Step 3: Cross multiply
    131,674.60x = 197,285.10 × 61,409.80
  4. Step 4: Simplify right side
    131,674.60x = 12,115,238,533.98
  5. Step 5: Solve for x
    x = 12,115,238,533.98/131,674.60
  6. Step 6: Final answer
    x = 92,008.93

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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.