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Finding the Fourth Proportional to 70,527.45, 105,884.97 and 40,966.50

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Solution

The fourth proportional to 70,527.45, 105,884.97 and 40,966.50 is: 61,504.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,527.45 : 105,884.97 = 40,966.50 : x
  2. Step 2: Convert to fraction form
    70,527.45/105,884.97 = 40,966.50/x
  3. Step 3: Cross multiply
    70,527.45x = 105,884.97 × 40,966.50
  4. Step 4: Simplify right side
    70,527.45x = 4,337,736,623.51
  5. Step 5: Solve for x
    x = 4,337,736,623.51/70,527.45
  6. Step 6: Final answer
    x = 61,504.23

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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.