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Finding the Fourth Proportional to 67,326.30, 100,904.40 and 34,055.55

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Solution

The fourth proportional to 67,326.30, 100,904.40 and 34,055.55 is: 51,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,326.30 : 100,904.40 = 34,055.55 : x
  2. Step 2: Convert to fraction form
    67,326.30/100,904.40 = 34,055.55/x
  3. Step 3: Cross multiply
    67,326.30x = 100,904.40 × 34,055.55
  4. Step 4: Simplify right side
    67,326.30x = 3,436,354,839.42
  5. Step 5: Solve for x
    x = 3,436,354,839.42/67,326.30
  6. Step 6: Final answer
    x = 51,040.30

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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.