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Finding the Fourth Proportional to 133,411.69, 200,128.05 and 44,665.57

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Solution

The fourth proportional to 133,411.69, 200,128.05 and 44,665.57 is: 67,001.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,411.69 : 200,128.05 = 44,665.57 : x
  2. Step 2: Convert to fraction form
    133,411.69/200,128.05 = 44,665.57/x
  3. Step 3: Cross multiply
    133,411.69x = 200,128.05 × 44,665.57
  4. Step 4: Simplify right side
    133,411.69x = 8,938,833,426.24
  5. Step 5: Solve for x
    x = 8,938,833,426.24/133,411.69
  6. Step 6: Final answer
    x = 67,001.88

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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.