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Finding the Fourth Proportional to 322,210.71, 483,183.02 and 139,853.18

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Solution

The fourth proportional to 322,210.71, 483,183.02 and 139,853.18 is: 209,722.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,210.71 : 483,183.02 = 139,853.18 : x
  2. Step 2: Convert to fraction form
    322,210.71/483,183.02 = 139,853.18/x
  3. Step 3: Cross multiply
    322,210.71x = 483,183.02 × 139,853.18
  4. Step 4: Simplify right side
    322,210.71x = 67,574,683,426.59
  5. Step 5: Solve for x
    x = 67,574,683,426.59/322,210.71
  6. Step 6: Final answer
    x = 209,722.03

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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.