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Finding the Fourth Proportional to 70,527.40, 105,721.02 and 35,359.72

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Solution

The fourth proportional to 70,527.40, 105,721.02 and 35,359.72 is: 53,004.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,527.40 : 105,721.02 = 35,359.72 : x
  2. Step 2: Convert to fraction form
    70,527.40/105,721.02 = 35,359.72/x
  3. Step 3: Cross multiply
    70,527.40x = 105,721.02 × 35,359.72
  4. Step 4: Simplify right side
    70,527.40x = 3,738,265,665.31
  5. Step 5: Solve for x
    x = 3,738,265,665.31/70,527.40
  6. Step 6: Final answer
    x = 53,004.44

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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.