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Finding the Fourth Proportional to 117,424.56, 175,935.51 and 78,883.83

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Solution

The fourth proportional to 117,424.56, 175,935.51 and 78,883.83 is: 118,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,424.56 : 175,935.51 = 78,883.83 : x
  2. Step 2: Convert to fraction form
    117,424.56/175,935.51 = 78,883.83/x
  3. Step 3: Cross multiply
    117,424.56x = 175,935.51 × 78,883.83
  4. Step 4: Simplify right side
    117,424.56x = 13,878,466,861.80
  5. Step 5: Solve for x
    x = 13,878,466,861.80/117,424.56
  6. Step 6: Final answer
    x = 118,190.49

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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.