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Finding the Fourth Proportional to 142,759.92, 197,000.44 and 79,093.92

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Solution

The fourth proportional to 142,759.92, 197,000.44 and 79,093.92 is: 109,145.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,759.92 : 197,000.44 = 79,093.92 : x
  2. Step 2: Convert to fraction form
    142,759.92/197,000.44 = 79,093.92/x
  3. Step 3: Cross multiply
    142,759.92x = 197,000.44 × 79,093.92
  4. Step 4: Simplify right side
    142,759.92x = 15,581,537,041.32
  5. Step 5: Solve for x
    x = 15,581,537,041.32/142,759.92
  6. Step 6: Final answer
    x = 109,145.04

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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.