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Finding the Fourth Proportional to 117,203.10, 175,724.61 and 56,381.28

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Solution

The fourth proportional to 117,203.10, 175,724.61 and 56,381.28 is: 84,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,203.10 : 175,724.61 = 56,381.28 : x
  2. Step 2: Convert to fraction form
    117,203.10/175,724.61 = 56,381.28/x
  3. Step 3: Cross multiply
    117,203.10x = 175,724.61 × 56,381.28
  4. Step 4: Simplify right side
    117,203.10x = 9,907,578,439.30
  5. Step 5: Solve for x
    x = 9,907,578,439.30/117,203.10
  6. Step 6: Final answer
    x = 84,533.42

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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.