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Finding the Fourth Proportional to 70,251.90, 105,412.45 and 32,806.53

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Solution

The fourth proportional to 70,251.90, 105,412.45 and 32,806.53 is: 49,225.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,251.90 : 105,412.45 = 32,806.53 : x
  2. Step 2: Convert to fraction form
    70,251.90/105,412.45 = 32,806.53/x
  3. Step 3: Cross multiply
    70,251.90x = 105,412.45 × 32,806.53
  4. Step 4: Simplify right side
    70,251.90x = 3,458,216,012.20
  5. Step 5: Solve for x
    x = 3,458,216,012.20/70,251.90
  6. Step 6: Final answer
    x = 49,225.95

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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.