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Finding the Fourth Proportional to 79,349,734.30, 119,024,601.45 and 21,850,879.90

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Solution

The fourth proportional to 79,349,734.30, 119,024,601.45 and 21,850,879.90 is: 32,776,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,349,734.30 : 119,024,601.45 = 21,850,879.90 : x
  2. Step 2: Convert to fraction form
    79,349,734.30/119,024,601.45 = 21,850,879.90/x
  3. Step 3: Cross multiply
    79,349,734.30x = 119,024,601.45 × 21,850,879.90
  4. Step 4: Simplify right side
    79,349,734.30x = 2,600,792,271,429,315.50
  5. Step 5: Solve for x
    x = 2,600,792,271,429,315.50/79,349,734.30
  6. Step 6: Final answer
    x = 32,776,319.85

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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.