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Finding the Fourth Proportional to 421,650.71, 632,538.58 and 122,093.90

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Solution

The fourth proportional to 421,650.71, 632,538.58 and 122,093.90 is: 183,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,650.71 : 632,538.58 = 122,093.90 : x
  2. Step 2: Convert to fraction form
    421,650.71/632,538.58 = 122,093.90/x
  3. Step 3: Cross multiply
    421,650.71x = 632,538.58 × 122,093.90
  4. Step 4: Simplify right side
    421,650.71x = 77,229,102,132.66
  5. Step 5: Solve for x
    x = 77,229,102,132.66/421,650.71
  6. Step 6: Final answer
    x = 183,158.95

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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.