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Finding the Fourth Proportional to 129,468.51, 194,211.88 and 34,698.51

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Solution

The fourth proportional to 129,468.51, 194,211.88 and 34,698.51 is: 52,050.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,468.51 : 194,211.88 = 34,698.51 : x
  2. Step 2: Convert to fraction form
    129,468.51/194,211.88 = 34,698.51/x
  3. Step 3: Cross multiply
    129,468.51x = 194,211.88 × 34,698.51
  4. Step 4: Simplify right side
    129,468.51x = 6,738,862,773.55
  5. Step 5: Solve for x
    x = 6,738,862,773.55/129,468.51
  6. Step 6: Final answer
    x = 52,050.21

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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.