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Finding the Fourth Proportional to 421,626.04, 632,287.84 and 122,044.62

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Solution

The fourth proportional to 421,626.04, 632,287.84 and 122,044.62 is: 183,023.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,626.04 : 632,287.84 = 122,044.62 : x
  2. Step 2: Convert to fraction form
    421,626.04/632,287.84 = 122,044.62/x
  3. Step 3: Cross multiply
    421,626.04x = 632,287.84 × 122,044.62
  4. Step 4: Simplify right side
    421,626.04x = 77,167,329,163.42
  5. Step 5: Solve for x
    x = 77,167,329,163.42/421,626.04
  6. Step 6: Final answer
    x = 183,023.16

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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.