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Finding the Fourth Proportional to 118,574.20, 176,995.67 and 103,627

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Solution

The fourth proportional to 118,574.20, 176,995.67 and 103,627 is: 154,683.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,574.20 : 176,995.67 = 103,627 : x
  2. Step 2: Convert to fraction form
    118,574.20/176,995.67 = 103,627/x
  3. Step 3: Cross multiply
    118,574.20x = 176,995.67 × 103,627
  4. Step 4: Simplify right side
    118,574.20x = 18,341,530,295.09
  5. Step 5: Solve for x
    x = 18,341,530,295.09/118,574.20
  6. Step 6: Final answer
    x = 154,683.99

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.