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Finding the Fourth Proportional to 133,354.70, 200,032.05 and 83,491.10

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Solution

The fourth proportional to 133,354.70, 200,032.05 and 83,491.10 is: 125,236.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,354.70 : 200,032.05 = 83,491.10 : x
  2. Step 2: Convert to fraction form
    133,354.70/200,032.05 = 83,491.10/x
  3. Step 3: Cross multiply
    133,354.70x = 200,032.05 × 83,491.10
  4. Step 4: Simplify right side
    133,354.70x = 16,700,895,889.76
  5. Step 5: Solve for x
    x = 16,700,895,889.76/133,354.70
  6. Step 6: Final answer
    x = 125,236.65

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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.