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Finding the Fourth Proportional to 133,073.80, 183,641.46 and 73,457.80

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Solution

The fourth proportional to 133,073.80, 183,641.46 and 73,457.80 is: 101,371.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,073.80 : 183,641.46 = 73,457.80 : x
  2. Step 2: Convert to fraction form
    133,073.80/183,641.46 = 73,457.80/x
  3. Step 3: Cross multiply
    133,073.80x = 183,641.46 × 73,457.80
  4. Step 4: Simplify right side
    133,073.80x = 13,489,897,640.39
  5. Step 5: Solve for x
    x = 13,489,897,640.39/133,073.80
  6. Step 6: Final answer
    x = 101,371.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.