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Finding the Fourth Proportional to 164,990.40, 247,489.44 and 40,332.48

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Solution

The fourth proportional to 164,990.40, 247,489.44 and 40,332.48 is: 60,499.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,990.40 : 247,489.44 = 40,332.48 : x
  2. Step 2: Convert to fraction form
    164,990.40/247,489.44 = 40,332.48/x
  3. Step 3: Cross multiply
    164,990.40x = 247,489.44 × 40,332.48
  4. Step 4: Simplify right side
    164,990.40x = 9,981,862,889.01
  5. Step 5: Solve for x
    x = 9,981,862,889.01/164,990.40
  6. Step 6: Final answer
    x = 60,499.66

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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.