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Finding the Fourth Proportional to 103,689.70, 155,534.55 and 33,576.10

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Solution

The fourth proportional to 103,689.70, 155,534.55 and 33,576.10 is: 50,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,689.70 : 155,534.55 = 33,576.10 : x
  2. Step 2: Convert to fraction form
    103,689.70/155,534.55 = 33,576.10/x
  3. Step 3: Cross multiply
    103,689.70x = 155,534.55 × 33,576.10
  4. Step 4: Simplify right side
    103,689.70x = 5,222,243,604.26
  5. Step 5: Solve for x
    x = 5,222,243,604.26/103,689.70
  6. Step 6: Final answer
    x = 50,364.15

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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.