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Finding the Fourth Proportional to 195,052.40, 292,495.52 and 76,640.67

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Solution

The fourth proportional to 195,052.40, 292,495.52 and 76,640.67 is: 114,928.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,052.40 : 292,495.52 = 76,640.67 : x
  2. Step 2: Convert to fraction form
    195,052.40/292,495.52 = 76,640.67/x
  3. Step 3: Cross multiply
    195,052.40x = 292,495.52 × 76,640.67
  4. Step 4: Simplify right side
    195,052.40x = 22,417,053,338.45
  5. Step 5: Solve for x
    x = 22,417,053,338.45/195,052.40
  6. Step 6: Final answer
    x = 114,928.37

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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.