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Finding the Fourth Proportional to 445,563.27, 668,333.81 and 130,022.91

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Solution

The fourth proportional to 445,563.27, 668,333.81 and 130,022.91 is: 195,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,563.27 : 668,333.81 = 130,022.91 : x
  2. Step 2: Convert to fraction form
    445,563.27/668,333.81 = 130,022.91/x
  3. Step 3: Cross multiply
    445,563.27x = 668,333.81 × 130,022.91
  4. Step 4: Simplify right side
    445,563.27x = 86,898,706,177.47
  5. Step 5: Solve for x
    x = 86,898,706,177.47/445,563.27
  6. Step 6: Final answer
    x = 195,031.13

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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.