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Finding the Fourth Proportional to 422,306.89, 633,500.56 and 118,700.26

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Solution

The fourth proportional to 422,306.89, 633,500.56 and 118,700.26 is: 178,061.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,306.89 : 633,500.56 = 118,700.26 : x
  2. Step 2: Convert to fraction form
    422,306.89/633,500.56 = 118,700.26/x
  3. Step 3: Cross multiply
    422,306.89x = 633,500.56 × 118,700.26
  4. Step 4: Simplify right side
    422,306.89x = 75,196,679,746.77
  5. Step 5: Solve for x
    x = 75,196,679,746.77/422,306.89
  6. Step 6: Final answer
    x = 178,061.69

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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.