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Finding the Fourth Proportional to 296,692.92, 445,034.52 and 72,055.20

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Solution

The fourth proportional to 296,692.92, 445,034.52 and 72,055.20 is: 108,081.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,692.92 : 445,034.52 = 72,055.20 : x
  2. Step 2: Convert to fraction form
    296,692.92/445,034.52 = 72,055.20/x
  3. Step 3: Cross multiply
    296,692.92x = 445,034.52 × 72,055.20
  4. Step 4: Simplify right side
    296,692.92x = 32,067,051,345.50
  5. Step 5: Solve for x
    x = 32,067,051,345.50/296,692.92
  6. Step 6: Final answer
    x = 108,081.62

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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.