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Finding the Fourth Proportional to 70,559.35, 105,855.16 and 30,585.02

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Solution

The fourth proportional to 70,559.35, 105,855.16 and 30,585.02 is: 45,884.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,559.35 : 105,855.16 = 30,585.02 : x
  2. Step 2: Convert to fraction form
    70,559.35/105,855.16 = 30,585.02/x
  3. Step 3: Cross multiply
    70,559.35x = 105,855.16 × 30,585.02
  4. Step 4: Simplify right side
    70,559.35x = 3,237,582,185.70
  5. Step 5: Solve for x
    x = 3,237,582,185.70/70,559.35
  6. Step 6: Final answer
    x = 45,884.53

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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.