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Finding the Fourth Proportional to 70,204.40, 105,332.89 and 36,449.35

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Solution

The fourth proportional to 70,204.40, 105,332.89 and 36,449.35 is: 54,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,204.40 : 105,332.89 = 36,449.35 : x
  2. Step 2: Convert to fraction form
    70,204.40/105,332.89 = 36,449.35/x
  3. Step 3: Cross multiply
    70,204.40x = 105,332.89 × 36,449.35
  4. Step 4: Simplify right side
    70,204.40x = 3,839,314,968.15
  5. Step 5: Solve for x
    x = 3,839,314,968.15/70,204.40
  6. Step 6: Final answer
    x = 54,687.67

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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.