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Finding the Fourth Proportional to 133,242.75, 183,885.45 and 75,884.49

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Solution

The fourth proportional to 133,242.75, 183,885.45 and 75,884.49 is: 104,726.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,242.75 : 183,885.45 = 75,884.49 : x
  2. Step 2: Convert to fraction form
    133,242.75/183,885.45 = 75,884.49/x
  3. Step 3: Cross multiply
    133,242.75x = 183,885.45 × 75,884.49
  4. Step 4: Simplify right side
    133,242.75x = 13,954,053,591.67
  5. Step 5: Solve for x
    x = 13,954,053,591.67/133,242.75
  6. Step 6: Final answer
    x = 104,726.55

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1.5x scale

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.