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Finding the Fourth Proportional to 103,271.76, 154,913.40 and 29,394

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Solution

The fourth proportional to 103,271.76, 154,913.40 and 29,394 is: 44,092.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,271.76 : 154,913.40 = 29,394 : x
  2. Step 2: Convert to fraction form
    103,271.76/154,913.40 = 29,394/x
  3. Step 3: Cross multiply
    103,271.76x = 154,913.40 × 29,394
  4. Step 4: Simplify right side
    103,271.76x = 4,553,524,479.60
  5. Step 5: Solve for x
    x = 4,553,524,479.60/103,271.76
  6. Step 6: Final answer
    x = 44,092.64

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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.