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Finding the Fourth Proportional to 190,497.92, 262,898.97 and 105,614.98

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Solution

The fourth proportional to 190,497.92, 262,898.97 and 105,614.98 is: 145,755.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,497.92 : 262,898.97 = 105,614.98 : x
  2. Step 2: Convert to fraction form
    190,497.92/262,898.97 = 105,614.98/x
  3. Step 3: Cross multiply
    190,497.92x = 262,898.97 × 105,614.98
  4. Step 4: Simplify right side
    190,497.92x = 27,766,068,144.08
  5. Step 5: Solve for x
    x = 27,766,068,144.08/190,497.92
  6. Step 6: Final answer
    x = 145,755.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.