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Finding the Fourth Proportional to 322,572.66, 445,161.60 and 177,389.40

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Solution

The fourth proportional to 322,572.66, 445,161.60 and 177,389.40 is: 244,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,572.66 : 445,161.60 = 177,389.40 : x
  2. Step 2: Convert to fraction form
    322,572.66/445,161.60 = 177,389.40/x
  3. Step 3: Cross multiply
    322,572.66x = 445,161.60 × 177,389.40
  4. Step 4: Simplify right side
    322,572.66x = 78,966,949,127.04
  5. Step 5: Solve for x
    x = 78,966,949,127.04/322,572.66
  6. Step 6: Final answer
    x = 244,803.60

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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.