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Finding the Fourth Proportional to 70,540.40, 105,651.72 and 49,573.52

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Solution

The fourth proportional to 70,540.40, 105,651.72 and 49,573.52 is: 74,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,540.40 : 105,651.72 = 49,573.52 : x
  2. Step 2: Convert to fraction form
    70,540.40/105,651.72 = 49,573.52/x
  3. Step 3: Cross multiply
    70,540.40x = 105,651.72 × 49,573.52
  4. Step 4: Simplify right side
    70,540.40x = 5,237,527,654.45
  5. Step 5: Solve for x
    x = 5,237,527,654.45/70,540.40
  6. Step 6: Final answer
    x = 74,248.62

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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.