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Finding the Fourth Proportional to 70,983.70, 106,437.15 and 29,434.90

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Solution

The fourth proportional to 70,983.70, 106,437.15 and 29,434.90 is: 44,136.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,983.70 : 106,437.15 = 29,434.90 : x
  2. Step 2: Convert to fraction form
    70,983.70/106,437.15 = 29,434.90/x
  3. Step 3: Cross multiply
    70,983.70x = 106,437.15 × 29,434.90
  4. Step 4: Simplify right side
    70,983.70x = 3,132,966,866.54
  5. Step 5: Solve for x
    x = 3,132,966,866.54/70,983.70
  6. Step 6: Final answer
    x = 44,136.43

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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.