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Finding the Fourth Proportional to 117,236.49, 175,818.81 and 42,347.40

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Solution

The fourth proportional to 117,236.49, 175,818.81 and 42,347.40 is: 63,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,236.49 : 175,818.81 = 42,347.40 : x
  2. Step 2: Convert to fraction form
    117,236.49/175,818.81 = 42,347.40/x
  3. Step 3: Cross multiply
    117,236.49x = 175,818.81 × 42,347.40
  4. Step 4: Simplify right side
    117,236.49x = 7,445,469,474.59
  5. Step 5: Solve for x
    x = 7,445,469,474.59/117,236.49
  6. Step 6: Final answer
    x = 63,508.12

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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.