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Finding the Fourth Proportional to 70,449.81, 105,690.90 and 23,066.43

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Solution

The fourth proportional to 70,449.81, 105,690.90 and 23,066.43 is: 34,604.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,449.81 : 105,690.90 = 23,066.43 : x
  2. Step 2: Convert to fraction form
    70,449.81/105,690.90 = 23,066.43/x
  3. Step 3: Cross multiply
    70,449.81x = 105,690.90 × 23,066.43
  4. Step 4: Simplify right side
    70,449.81x = 2,437,911,746.49
  5. Step 5: Solve for x
    x = 2,437,911,746.49/70,449.81
  6. Step 6: Final answer
    x = 34,604.94

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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.