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Finding the Fourth Proportional to 74,506.50, 111,760.02 and 70,769.16

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Solution

The fourth proportional to 74,506.50, 111,760.02 and 70,769.16 is: 106,154.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,506.50 : 111,760.02 = 70,769.16 : x
  2. Step 2: Convert to fraction form
    74,506.50/111,760.02 = 70,769.16/x
  3. Step 3: Cross multiply
    74,506.50x = 111,760.02 × 70,769.16
  4. Step 4: Simplify right side
    74,506.50x = 7,909,162,736.98
  5. Step 5: Solve for x
    x = 7,909,162,736.98/74,506.50
  6. Step 6: Final answer
    x = 106,154.00

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1.5x scale

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.