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Finding the Fourth Proportional to 283,097.55, 424,515.11 and 105,556.89

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Solution

The fourth proportional to 283,097.55, 424,515.11 and 105,556.89 is: 158,286.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,097.55 : 424,515.11 = 105,556.89 : x
  2. Step 2: Convert to fraction form
    283,097.55/424,515.11 = 105,556.89/x
  3. Step 3: Cross multiply
    283,097.55x = 424,515.11 × 105,556.89
  4. Step 4: Simplify right side
    283,097.55x = 44,810,495,830.90
  5. Step 5: Solve for x
    x = 44,810,495,830.90/283,097.55
  6. Step 6: Final answer
    x = 158,286.41

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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.