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Finding the Fourth Proportional to 94,056.30, 129,799.28 and 51,618.78

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Solution

The fourth proportional to 94,056.30, 129,799.28 and 51,618.78 is: 71,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,056.30 : 129,799.28 = 51,618.78 : x
  2. Step 2: Convert to fraction form
    94,056.30/129,799.28 = 51,618.78/x
  3. Step 3: Cross multiply
    94,056.30x = 129,799.28 × 51,618.78
  4. Step 4: Simplify right side
    94,056.30x = 6,700,080,220.38
  5. Step 5: Solve for x
    x = 6,700,080,220.38/94,056.30
  6. Step 6: Final answer
    x = 71,234.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.