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Finding the Fourth Proportional to 133,101.01, 183,674.14 and 72,674.20

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Solution

The fourth proportional to 133,101.01, 183,674.14 and 72,674.20 is: 100,287.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,101.01 : 183,674.14 = 72,674.20 : x
  2. Step 2: Convert to fraction form
    133,101.01/183,674.14 = 72,674.20/x
  3. Step 3: Cross multiply
    133,101.01x = 183,674.14 × 72,674.20
  4. Step 4: Simplify right side
    133,101.01x = 13,348,371,185.19
  5. Step 5: Solve for x
    x = 13,348,371,185.19/133,101.01
  6. Step 6: Final answer
    x = 100,287.53

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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.